Book of Abstracts presented at the 12 International Conference on Fracture Fatigue and Wear (FFW 2024)

Edited by

Prof. Magd Abdel Wahab

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Scientific Books of Abstracts, Vol. 6, pp -1-0

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-12

Online:
2024-08-30

Preface

This book contains the abstracts presented at the International Conference on Fracture Fatigue and Wear (FFW 2024), which was held in Xi'an, China, during the period 28-31 July 2024. Previous conferences were celebrated in Jinan (China, 2010), Kitakyushu (Japan, 2013), Kitakyushu (Japan, 2014), Ghent (Belgium, 2015), Kitakyushu (Japan, 2016), Porto (Portugal, 2017) and Ghent (Belgium, 2018-2023).

The overall objective of the conference is to bring together international scientists and engineers in academia and industry in fields related to fracture mechanics, fatigue of materials, tribology and wear of materials. The conference covers industrial engineering applications in the above fields, including theoretical and analytical methods, numerical simulations and experimental techniques. One of the aims of the conference is to promote cooperation between international scientists and engineers from a large number of disciplines who are involved in research related to fracture, fatigue and wear.

The organising committee is grateful to the keynote speaker, Prof Nao-Aki Noda, Professor Emeritus, Kyushu Institute of Technology, Mechanical Engineering Department, Kitakyushu 8048550, Japan, for his keynote speech entitled "Study on sleeve slip mechanism and slip damage through load shifting simulation and miniature roll experiment for development of next-generation sleeve assembly type rolls", and to the keynote speaker, Dr. Yunlai Zhou, Associate Professor, Department of Engineering Mechanics, Xi'an Jiaotong University, China, for his keynote speech entitled "Large structural dynamic analysis: from structural optimization to condition assessment".

Finally, the organising committee would like to thank all authors who contributed to this edition and to those who presented their research work at the conference venue.

Professor Magd Abdel Wahab
Chairman of FFW 2024

Organising Committee

Chairman

Professor Magd Abdel Wahab, Laboratory Soete, Ghent University, Belgium

Co-Chairman

Prof. Yun-Lai Zhou, Xi'an Jiaotong University, China

International Scientific Committee

Prof. S Abdullah, Universiti Kebangsaan Malaysia, Malaysia
Dr. J Abenojar, Universidad Carlos III de Madrid, Spain
Prof. J Toribio, University of Salamanca, Spain
Dr. A Rudawska, Lublin University of Technology, Poland
Dr. K Masuda, University of Toyama, Japan
Prof. K Oda, Oita University, Japan
Dr. Dagang Wang, China University of Mining and Technology, China
Prof. Hung Nguyen-Xuan, HUTECH, Vietnam
Prof. Timon Rabczuk, Bauhaus University Weimar, Germany
Prof. X. Zhuang, Leibniz Unversität Hannover, Germany
Dr. C Le Thanh, Open University Ho Chi Minh City, Vietnam
Dr. Y.L. Zhou to Xi'an Jiaotong University, China
Dr. Qi Zhao, Hubei University of Automotive Technology, China
Prof. Lihau Wang, Tongji University, Shanghai, China
Prof. Mojtaba Ayatollahi, University of Zanjan, Iran
Dr. Hoang Le Minh, Open University Ho Chi Minh City, Vietnam
Dr. Anagnostis Toulfatzis, ELKEME Hellenic Research Centre for Metals S.A., Greece
Prof. Magdalena Niemczewska-Wójcik, Cracow University of Technology, Poland
Dr. Raul Campilho, Instituto Superior de Engenharia do Porto, Portugal
Prof. Yusuf Şahin, OSTIM Technical University, Turkey
Dr. Hafiz T Ali, Taif University, KSA
Dr. Dhanraj Rajaraman, Ghent University, Belgium

Table of Contents

Preface and Committee

A Numerical Study of the Effect of Residual Stress on Fretting Fatigue Behavior

Can Wang, Magd Abdel Wahab

An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures

Bilal Ahmed, Can Wang, Magd Abdel Wahab

Numerical and Experimental Study on Two Roller Vertical Forward Flow Forming Process

Acar Can Kocabıçak, Magd Abdel Wahab

Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Muhammad Imran, Magd Abdel Wahab

A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Muhammad Irfan Shirazi, Magd Abdel Wahab

Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Yi Fei Li, Mao Sen Cao, Magd Abdel Wahab

Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

Usama Hamid, Magd Abdel Wahab

Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires

Gao Fang Wang, Yu Xing Peng, Magd Abdel Wahab

A Method for Obtaining More Stable Compressive Residual Stresses

Kaifa Fan, Dao Xin Liu, Can Wang, Magd Abdel Wahab

Design Optimization of Multi-Directional Porous Sandwich Functionally Graded Plates Reinforced with Graphene Nanoplatelets Based on Isogeometric Analysis and Sinh Cosh Optimizer

Jianfu Bai, Magd Abdel Wahab

Numerical Simulation of Surface Roughness Considering Shot Peening Surface Modification Technology

Chao Li, Magd Abdel Wahab

A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Ngoc Lan Nguyen, Nguyen Bao-Lam, Bui Tien Thanh, Magd Abdel Wahab

Analysis of Single Lap Functionally Graded Adhesive Joints with Different Adherends

Yanan Zhang, Magd Abdel Wahab

Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Naoaki Noda

The New Design of an Elevator's Door Mechanism

Huseyn Mirzayev, Yusuf Şahin

Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

Shi Qiang Qin, Ao Zhong, Jia Bin Zhang, Li Qiang Gao

Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Fang Yuan, Ya Zhou Xu

Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

Xian Da Xie, Shu Ting Wang, Xiao Bing Li

Thermal and Mechanical Property of Carbon Fiber Reinforced Composite

Yusuf Şahin

Reinforcement of Living Space in the Bus Using rCF (Recycled Carbon Fibres) from Expired Prepreg from the Aircraft Industry

Miguel Angel Martinez

The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

Juana Abenojar, Miguel Angel Martinez

Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

Qiang Yang, Chun Yu Bai, Bin Wen Wang

Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

Yuri Kadin, Gerrit Jan Dop, Richard Schaake, Gijs de Kort, Marcus Boehm

Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

Xiao Jun Jiang

Fatigue of Dual Crosslink Hydrogels with Metal-Ligand Coordination Bonds

Yi Jian Zheng

A Review on the Fatigue Cracking of Twin Boundaries: Crystallographic Orientation and Stacking Fault Energy

Lin Lin Li

Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Mohamed Kalifa, Andrew Starr, Muhammad Khan

Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Li Nan Tian, Long Liu, Zheng Ci Wang

Keywords Index

Authors Index

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 1-2

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-16

Accepted:
2024-06-18

Online:
2024-08-30

A Numerical Study of the Effect of Residual Stress on Fretting Fatigue Behavior

Can Wang , Magd Abdel Wahab

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium

can.wang@ugent.be, magd.abdelwahab@ugent.be

Keywords: fretting fatigue; residual stress; shot peening crack initiation; crack propagation; Linear Elastic Fracture Mechanics.

Abstract

Fretting fatigue refers to the behavior exhibited by engineering components under cyclic loading while in contact with each other. This complex contact-related phenomenon often results in premature failure compared to standard fatigue concerns. To prolong the lifespan of components experiencing fretting fatigue, surface strengthening is imperative. One established method for enhancing the durability of these components is the application of compressive residual stress to the material's surface, achieved through Shot Peening (SP) [1-3].

The effectiveness of SP relies on several controlled parameters such as shot speed, ball material, ball diameter, and coverage. These parameters significantly influence the distribution of residual stress, including maximum residual stress, depth of the residual stress area, and depth of the maximum residual stress. Hong et al. [4] presented a comprehensive model of the shot peening process, which was developed using both finite element and discrete element methods. Additionally, they investigated the influence of various parameters such as shot velocity, shot diameter, and the number of shot impacts on the distribution of RS. Their research findings demonstrated that these three parameters had noticeable effects on the maximum RS, the depth of the region where RS was present, and the depth at which the maximum RS was situated. Notably, among these parameters, it was observed that shot diameter had the least significant impact on the resulting RS distribution. As the shot velocity became large, the maximum RS increased, the depth of the RS zone became large, but the surface RS was not affected much. The shot times also influenced the depth of RS zone and maximum RS.

To study the effect of RS on fretting fatigue behavior, a numerical model is established and validated [5, 6]. The Critical Plane (CP) Method [7-10] is employed to calculate the damage parameter, while the Theory of Critical Distance (TCD) method averages the damage parameter due to stress concentration resulting from the contact problem. This investigation aims to understand the impact of RS distribution on fretting fatigue crack initiation behavior.

References

J. Wu, D. Liu, Y. Guan, H. Shi, S. Cheng, J. Shi, X. He, X. Fu, Effect of shot peening forming and shot peening strengthening post-treatment on the fatigue behavior of bolt-connected 2024HDT alloy, Engineering Fracture Mechanics 293 (2023) 109690.

S. Vantadori, J.V. Valeo, A. Zanichelli, Fretting fatigue and shot peening: a multiaxial fatigue criterion including residual stress relaxation, Tribology International 151 (2020) 106537.

V. Martín, J. Vázquez, C. Navarro, J. Domínguez, Effect of shot peening residual stresses and surface roughness on fretting fatigue strength of Al 7075-T651, Tribology International 142 (2020) 106004.

T. Hong, J.Y. Ooi, B. Shaw, A numerical simulation to relate the shot peening parameters to the induced residual stresses, Engineering Failure Analysis 15(8) (2008) 1097-1110.

C. Wang, C. Li, Y. Ling, M. Abdel Wahab, Investigation on fretting fatigue crack initiation in heterogenous materials using a hybrid of multiscale homogenization and direct numerical simulation, Tribology International169 (2022), 107470.

C. Wang, K. Fan, C. Li, M. Abdel Wahab, Prediction of the effect of shot peening residual stress on fretting fatigue behaviour, International Journal of Fatigue 176 (2023) 107909.

W.N. Findley, A Theory for the Effect of Mean Stress on Fatigue of Metals Under Combined Torsion and Axial Load or Bending, Journal of Engineering for Industry 81(4) (1959) 301305.

Smith, J., Watson, P., and Topper, T., "A Stress Strain Function for Fatigue of Metals," Journal of Materials 0022-2453 (JMLSA), 4(5) (1970) 293-298.

A. Fatemi, D.F. Socie, A critical plane approach to multiaxial fatigue damage including out-of-phase loading, Fatigue Fract. Engng Mater. Struct. 11(3) (1988) 149-165.

D.L. McDiarmid, A GENERAL CRITERION FOR HIGH CYCLE MULTIAXIAL FATIGUE FAILURE, Fatigue & Fracture of Engineering Materials & Structures 14(4) (1991) 429-453.

K. Pereira, M. Abdel Wahab, Fretting fatigue crack propagation lifetime prediction in cylindrical contact using an extended MTS criterion for non-proportional loading, Tribology International 115 (2017) 525-534.

C. Wang, K. Pereira, D. Wang, A. Zinovev, D. Terentyev, M. Abdel Wahab, Fretting fatigue crack propagation under out-of-phase loading conditions using extended maximum tangential stress criterion, Tribology International 187 (2023), 108738.

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 3-4

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-16

Revised:
2024-04-17

Accepted:
2024-06-19

Online:
2024-08-30

An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures

Bilal Ahmed , Can Wang , Magd Abdel Wahab

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium

*Corresponding author: bilal.ahmed@ugent.be, can.wang@ugent.be, magd.abdelwahab@ugent.be

Keywords: Fretting fatigue; elevated temperature; nickel-based alloys.

Abstract

In mechanical engineering domain, many components experience fretting fatigue phenomenon. Fretting fatigue is mainly caused when loaded surfaces are in contact and subjected to small oscillatory movements tangential to the surface. Due to these movements coupled with normal loads, small cracks initiate and eventually grow leading to failure of the mechanical component [1]. Generally, the material fatigue properties tend to reduce at elevated temperature mainly due to material degradation at high temperatures in addition to damage caused by external loadings. This motivates us to investigated fretting fatigue phenomenon in mechanical components where the operating temperatures are high as in case of aircraft gas turbines. Nickel based superalloys are widely used in aircraft gas turbine industry owing to their high mechanical strength at high temperatures. These superalloys have been used in aircraft gas turbines to cope with the changes induced due to operating conditions like increase in temperature [2]. The first studies on fretting fatigue behavior at elevated temperatures for Ni -based alloys were conducted by Waterhouse [3]. He compared the behaviors of both nickel-based and titanium-based alloys at different temperatures. It was the first time when formation of oxide layer on surface was reported. Fairly recently, Sun et al. [4] investigated the response of nickel-based single crystal subjected to different levels of normal contact loadings at . The authors investigated the effect of changing normal contact loads on fretting fatigue behavior at high temperatures. Formation of oxide layer has also been reported in this study. A similar study was carried out by Fleury [5] for CMSX-4, a nickel-based superalloys but at a temperature of . Fung et al. [6] performed fretting fatigue experiments on GH4169, a nickel-based polycrystalline superalloy at and compared the results with similar experimental results at room temperature. The results indicated a reduction in fretting fatigue life with increase in temperature. In another study carried out by Mall et al. [7], opposite behavior of nickel-based superalloy (IN100) with increasing temperature has been reported. An improvement in both the plain and fretting fatigue lives were reported. This improvement was attributed to the fact that with rise in temperature to a certain values , tensile and yield strength of this material increased. Kwon et al. [8] investigated the effect of temperature rise on fretting fatigue behaviors of Inconel 600 and Inconel 690, both nickel-based alloys. The studies were carried out at room temperature and at an elevated temperature of . However, the results indicated no significant change in fretting fatigue life of both the materials at . This was attributed to the fact that the fatigue strength of these materials do not change noticeably at test temperature. Authors suggested that the results could be different if the temperature was high enough to change the fatigue strength of material [9]. In a recent study, Almeida et el. [10] compared the fretting fatigue life of Inconel 718 alloy at room temperature and . The fretting fatigue life was reduced at elevated temperature. The same material was investigated for its fretting fatigue behavior by Rubio et el. [11] at room temperature and . Both plain fatigue and fretting fatigue tests were carried out and the results indicated that the fretting fatigue life had significant reduction in fatigue life at high temperature as compared to room temperature. Authors also claimed that the temperature rise mainly affected the propagation phase of the crack and not the initiation phase. In light of recent studies in the literature, it can be seen that the main focus has been the fretting fatigue life and very less literature has been reported on crack initiation and propagation at elevated temperatures. In future, efforts will

References

Mouritz AP. Introduction to aerospace materials. Woodhead Publishing Limited; 2012

Golden PJ. Development of a dovetail fretting fatigue fixture for turbine engine materials. Int J Fatigue 2009;vol. 31(4):620-8

Waterhouse RB. Fretting at high temperatures. Tribology Int 1981:203-

Sun Shouyi, Li Lei, He Kun, Yue Zhufeng, Yang Weizhu, Yu Zhiyuan. Fretting fatigue damage mechanism of Nickel-based single crystal superalloys at high temperature. Int J Mech Sci 2020;vol. 186

R.M.N. Fleury, Investigation of fretting fatigue in turbine fir tree blade to disc joints at high temperature [Ph.D. thesis], University of Oxford, 2015

Fang J, Han Q, Cui H, Lei X, Yan X, Mu Q. Fretting fatigue experiment and polycrystal plasticity simulation in Ni-based superalloy at room temperature and . Int J Fatigue 2023;vol. 168(107460)

Mall S, Kim H-K, Porter WJ, Ownby JF, Traylor AG. High temperature fretting fatigue behavior of IN100. Int J Fatigue 2010;vol. 32(8):1289-98

Kwon J-d, Park D-k, Woo S-w, Yoon D-h, Chung I. A study on fretting fatigue life for the Inconel alloy 600 at high temperature. Nucl Eng Des 2010;vol. 240:2521-7

Kwon J-d, Jeung H-k, Chung I, Yoon D-h, Park D-k. A study on fretting fatigue characteristics of Inconel 690 at high temperature. Tribology Int 2011;vol. 44: 1483-7

Almeida G, Cardoso R, Chassaing G, Pommier S, Araújo J. Fretting fatigue of Inconel 718 at room and elevated temperatures considering both constant and cyclic normal contact loads. Tribology Int 2023;vol. 183(108382)

María Moreno-Rubio, Jesús Vázquez, Carlos Navarro, Jaime Domínguez, Experimental study on the fretting fatigue of Inconel 718 superalloy, Tribology International, Volume 186, 2023

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 5-6

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-17

Accepted:
2024-06-18

Online:
2024-08-30

Numerical and Experimental Study on Two Roller Vertical Forward Flow Forming Process

Acar Can Kocabıçak , Magd Abdel Wahab

Laboratory Soete, Faculty of Engineering and Architecture, Ghent University, Technologiepark

Zwijnaarde 46 B-9052, Belgium

acarcan.kocabicak@ugent.be, magd.abdelwahab@ugent.be

Keywords: Flow forming; Metal forming; Experimental trials; Finite element method; Plasticity; Surface roughness; damage.

Abstract

Flow forming, a cold working technique, enables the fabrication of high-precision, thinwalled rotational symmetric components, enhancing their mechanical properties [1]. The forward flow forming process is subjected to numerical modeling using Finite Element Method (FEM), specifically through FORGE® NxT 4.0 software, as employed in this study. JmatPro Software helps acquire elasticity, thermal, physical, and plasticity properties of EN 36B steel material, with resultant parameters integrated into FORGE® NxT 4.0 software [2]. Material properties have been investigated to establish a robust foundation for experimental and simulation endeavors [3]. Before starting flow forming simulations and numerical models, JmatPro software is employed to accurately define the material parameters of the starting material [4]. Microstructural characterization, hardness assessments, stress distribution analyses, and strain evaluations of samples contribute to experimental data supported by FEM outcomes [5,6]. The two-roller vertical flow forming machine has been used to produce flow-formed parts during experimental production [7]. The wall thickness of the preforms is 8 mm , and variable reduction rates have been conducted to reduce the final workpiece thickness. The preform inner diameter was chosen as 52.50 mm for the experimental and numerical model. Axial and radial stagger have been generated during the experimental works which play a significant role to reduce the thickness properly [8]. The FEM investigation extends to examining thermomechanical properties, power, and reaction force distributions. The power and thermal analysis are crucial in understanding plastic deformation mechanisms' role in workpiece temperatures and part geometries during flow forming . Notably, the hardness and mechanical properties of EN36B steel preforms witness significant enhancements after the flow forming, alongside observed grain refinement along the longitudinal axis. The efficacy of Arbitrary Lagrangian Eulerian (ALE) formulation is generated for its proficiency in accurately predicting workpiece properties during flow forming simulations. Utilizing ALE formulation, stress distribution, mechanical properties, process temperatures, strain rates, dimensional alterations, radial and axial forces are thoroughly examined.

Integrating reliable fracture criteria within metal forming applications is crucial for accurately predicting potential cracks and failures [9]. Among some available criteria, the Normalized Cockcroft-Latham Criterion (LCLC) produces a notable accurate prediction, as it solves damage problems based on stress and strain components during computation [10]. The review of existing literature highlights a notable gap in Finite Element (FE) models specifically tailored for the two rollers' vertical forward flow forming process, with a lack of characterization concerning the hardness distribution of flow-formed EN36B parts. Consequently, this work endeavors to bridge this gap by comparing experimental findings and simulations for the vertical flow forming process using EN36B steel. The primary focus of this study is to investigate various aspects, including hardness distribution, surface roughness results, mechanical properties, workpiece temperature, and process forces pertaining to EN36B steel during the flow forming process. The resultant samples undergo hardness and mechanical properties results to validate the accuracy of the FE model, thereby ensuring the fidelity and reliability of simulation outcomes.

References

A. Ghiotti, S. Bruschi, E. Simonetto, T. Magro, L. Madej, Severe plastic deformation by Constrained Backward Flowforming, CIRP Ann. 71 (2022) 253-256. https://doi.org/10.1016/j.cirp.2022.04.013.

L. Jego, M. Heidari, M. Zorgani, T. Levasseur, M. Jahazi, Impact of short-time annealing on AISI 8670 tool steel saw during industrial brazing process, Next Mater. 2 (2024) 100121. .

F. Li, C. Zhu, S. Zhao, Research on a new counter-roller active spinning process for forming Al alloy thin-walled cylinders, J. Mater. Process. Technol. 326 (2024) 118309. .

Z. Guo, P. Lasne, N. Saunders, J.P. Schillé, Introduction of materials modelling into metal forming simulation, Procedia Manuf. 15 (2018) 372-380. .

F. Molladavoudi, Hamid R. Djavanrood, Experimental study of thickness reduction effects on mechanical properties and spinning accuracy of aluminum 7075-O, during flow forming, Int. J. Adv. Manuf. Technol. 52 (2011) 949-957. .

X.X. Wang, T. Liu, R.X. Zhang, H.J. Jin, X.N. Zhao, W.H. Wu, J. Cheng, Texture evolution related to static recrystallization during annealing of TA15 alloy tube formed by flow forming, J. Mater. Res. Technol. 24 (2023) 5769-5781. .

E. Urig, L. Zhigilei, Finite Element Modeling of Plastic Deformation During Spin Forming of Aluminum 6061-O, (2023).

Z. Yu, Y. Meng, Y. Zhou, Y. Zhao, Study on multi-roller flow forming process of aluminum alloy cylinders with cross ribs, Int. J. Adv. Manuf. Technol. 125 (2023) 3489-3501. .

W. Xu, H. Wu, H. Ma, D. Shan, Damage evolution and ductile fracture prediction during tube spinning of titanium alloy, Int. J. Mech. Sci. 135 (2018) 226-239. .

D. Depriester, E. Massoni, On the damage criteria and their critical values for flowforming of ELI grade Ti64, in: Key Eng. Mater., Trans Tech Publications Ltd, 2014: pp. 1221-1227. .

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 7-7

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-17

Revised:
2024-06-19

Accepted:
2024-06-22

Online:
2024-08-30

Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Muhammad Imran , and Magd Abdel Wahab

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark

Zwijnaarde 46, B-9052 Zwijnaarde, Belgium

muhammad.imran@ugent.be, magd.abdelwahab@uGent.be

Keywords: Fretting, elastic, plastic, wear, FE simulation.

Abstract

The phenomenon of fretting wear involves small repetitive oscillating movements under contact load between the contacting geometries and causes the material to be damaged. A numerical simulation approach is frequently used to study the fretting wear of steel wire ropes used in coal mine hoisting systems [1]. Generally, the fretting wear simulations have been performed considering the elastic properties of materials. This study presents a Finite Element Analysis (FEA) methodology to examine the fretting wear behavior of steel wires considering the effect of material plasticity [2][3]. The influence of considering elastic-plastic fretting wear model on the contact stresses, wear profile, and wear depth is studied. The findings show that the fretting wear model with elastic material properties is simple to implement, less sensitive to material parameters, and also requires less computational cost. The elastic-plastic wear model is sensitive to material parameters, requires more computational cost, and needs a lot of convergence study to implement the plastic behavior of the material. A comparison between the elastic wear model and elasticplastic wear model is shown in Figure 1. The plastic wear model shows ploughing effects on wear profiles as shown in Figure 1 due plastic flow of material. It also shows that the elastic wear model has more wear depth while the plastic wear model has a wider contact scar area due to the plasticity of the material.

References

Imran, M., Wang, D., & Wahab, M. A. (2023). Three-dimensional finite element simulations of fretting wear in steel wires used in coal mine hoisting system. Advances in Engineering Software, 184, 103499.

Sridhar, M. R., & Yovanovich, M. M. (1994). Review of elastic and plastic contact conductance models-Comparison with experiment. Journal of Thermophysics and Heat Transfer, 8(4), 633-640. Swaminathan, V., & Gilbert, J. L. (2012). Fretting corrosion of CoCrMo and Ti6Al4V interfaces. Biomaterials, 33(22), 5487-5503.

Yue, T., Wang, D., & Abdel Wahab, M. (2016). Elastoplastic fretting wear behaviour of contact wires. In 5th International Conference on Fracture Fatigue and Wear (Vol. 4, pp. 5057). Labo Soete, Universiteit Gent.

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 8-8

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-18

Accepted:
2024-06-18

Online:
2024-08-30

A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Muhammad Irfan Shirazi , Magd Abdel Wahab

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark

Zwijnaarde 903, B-9052 Zwijnaarde, Belgium

Keywords: Structural Health Monitoring, Convolution Neural Networks, Real-time damage detection,1D Convolution Neural Networks.

Abstract

Structural Health Monitoring (SHM) is an important concept that tries to anticipate damage in a structure. This ability to anticipate the onset of damage helps in more robust maintenance strategies while also making sure that losses are at a minimum. The rising use of composites in various structures makes SHM relevant for composites as well. Vibration signal-based techniques have proven to be a good measure to detect damages in literature. In these scenarios, real-time damage detection is possible, as the continuous monitoring system can detect damages as soon as the damage creates perceptible changes in vibration characteristics of the structure. 1D-CNN seems to be a good fit for these applications. The vibration data are 1D time series signals and have been successfully implemented in classifying damaged and healthy signals for composite beams.

This study attempts to find answers in the literature for the question which 1D-CNNs can be used for regression instead of classification. Regression of damage location and extent is necessary for applications where damage is not usually located at predetermined stress concentration sites and can occur anywhere within the structure. The aim of this study is to determine the feasibility of a network that can be trained on the recorded vibration responses to learn the right features that are required to distinguish different damaged states of the plate. The output of the network needs to be regression values of damage location and magnitude. Many different strategies in literature can be used for this specific problem, but they need to be explored for their pros and cons and their feasibility for SHM related problems.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 9-9

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-18

Accepted:
2024-06-18

Online:
2024-08-30

Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Yi Fei , Mao Sen , Magd Abdel Wahab

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Belgium

Department of Engineering Mechanics, Hohai University, Nanjing, China

ªtli.yifei@ugent.be, b20110018@hhu.edu.cn, cmagd.abdelwahab@ugent.be

Keywords: Structural damage identification, Stochastic spectrum embedding, Enhanced termite life cycle optimizer, Small-scale laboratory dam, Vibration response.

Abstract

Structural Damage Identification (SDI) plays a crucial role in structural health monitoring [1]. In this abstract, we present a novel damage identification method. Initially, a Stochastic Spectrum Embedding (SSE) model, which possesses superior small-sample modeling capabilities, is utilized to replace the computationally expensive structural finite element model at a low cost. Subsequently, by leveraging the characteristics of an Enhanced Termite Life Cycle Optimizer (ETLCO), a novel asymmetric probability-based movement function is autonomously designed to enhance its performance . Using a small-scale laboratory dam with measured vibration response as an example, the effectiveness and efficiency of the proposed method in addressing SDI problems were investigated [4], yielding two important findings: (1) The newly developed movement function greatly enhances the ability of the ETLCO to escape local optima when dealing with highdimensional, multi-modal problems and (2) The ETLCO-SSE method achieves a qualitative leap in computational efficiency for solving SDI problems, while exhibits high accuracy and robustness. The proposed method has the potential to serve as a valuable tool for damage identification in large and complex structures.

References

Li Y F, Minh H L, Khatir S, et al. Structure damage identification in dams using sparse polynomial chaos expansion combined with hybrid K-means clustering optimizer and genetic algorithm[J]. Engineering Structures, 2023, 283: 115891.

Marelli S, Wagner P R, Lataniotis C, et al. Stochastic spectral embedding[J]. International Journal for Uncertainty Quantification, 2021, 11(2).

Minh H L, Sang-To T, Theraulaz G, et al. Termite life cycle optimizer[J]. Expert Systems with Applications, 2023, 213: 119211.

Li Y F, Minh H L, Cao M S, et al. An integrated surrogate model-driven and improved termite life cycle optimizer for damage identification in dams[J]. Mechanical Systems and Signal Processing, 2024, 208: 110986.

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 10-10

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-23

Accepted:
2024-06-18

Online:
2024-08-30

Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

Usama Hamid , Magd Abdel Wahab

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions, and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium

Usama.Hamid@ugent.be, magd.abdelwahab@ugent.be

Keywords: auxetic honeycomb cell, sandwich nanoplates, negative poisson's ratio, energy absorption, optimization.

Abstract

Researchers have lately demonstrated an increased interest in sandwich plates incorporating cellular cores due to their distinctive characteristics such as light weight, high energy absorption and stiffness [1]. The combination of auxetic honeycomb sandwich structures and nanoplates opens significant options in aerospace industry by improving mechanical properties. However, their full potential has yet to be discovered. The sandwich plate structures consist of an auxetic honeycomb core layer with a negative Poisson's ratio and two skin layers reinforced by Graphene Nanoplatelets (GNPs) or other materials [2]. The high energy absorption of these sandwich nanoplates is important for their structural integrity, minimizing damage and good vibration damping properties. Geometrical characteristics such cell re-entrant angle, beam length, height, and thickness can have varying impacts on the energy absorption of these sandwich nanoplates. Optimization techniques on maximizing energy absorption of auxetic honeycomb cells can be employed to get optimal geometric parameters while considering the design constraints. Furthermore, the comparative study can also be carried out to investigate the energy absorption capabilities of various honeycomb materials.

References

Wang, W.-J., et al., Energy absorption characteristics of a lightweight auxetic honeycomb under low-velocity impact loading. Thin-Walled Structures, 2023. 185: p. 110577.

Nguyen, N.V., et al., A comprehensive analysis of auxetic honeycomb sandwich plates with graphene nanoplatelets reinforcement. Composite Structures, 2021. 259: p. 113213.

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 11-11

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-04-29

Revised:
2024-07-02

Accepted:
2024-07-02

Online:
2024-08-30

Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires

Gaofang Wang , Yuxing Peng , Magd Abdel Wahab

School of Mechanical and Electrical Engineering and Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, China University of Mining and Technology, Jiangsu Province, Xuzhou, 221116, China

Jiangsu Collaborative Innovation Center of Intelligent Mining Equipment, Xuzhou, China

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Faculty of Engineering and Architecture, Ghent University

ªWangfangf@cumt.edu.cn, ,bengyuxing@cumt.edu.cn, ,magd.abdelwahab@ugent.be

Keywords: Wire; Corrosion time; Fretting wear; Wear morphology; Damage surface mechanical behavior.

Abstract

Corrosion and fretting wear inevitably occur in wires, which are important parts of cables. To study the wear morphology and surface mechanical behavior of wires for different fretting and corrosion times, a simulation model of fretting wear of wire with different corrosion conditions is established by using MATLAB and ABAQUS softwares. First, according to the surface roughness of wires under different corrosion times, the node coordinates of the simulation model are changed to simulate different rough surfaces. Secondly, the wear characteristics of wires under different fretting cycles are obtained by using cycle jump in a user subroutine in ABAQUS. Finally, the numerical model is validated using experimental data. The results show that when the corrosion time is 0 h , the wear area has a regular oval shape. The wear volumes of wires with corrosion times of 120 h and 480 h are the largest and the smallest, namely and , respectively. As wear volume increases, both residual surface contact pressure and stress decrease. When the corrosion time is 0 h and 120 h , the residual surface contact pressure is maximum and minimum, respectively.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 12-13

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-05-18

Accepted:
2024-06-18

Online:
2024-08-30

A Method for Obtaining More Stable Compressive Residual Stresses

Kaifa Fan , Daoxin Liu ,Can Wang and Magd Abdel Wahab

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Belgium

Corrosion and Protection Research Laboratory, School of Civil Aviation, Northwestern Polytechnical University, China

kaifa.fan@ugent.be, liudaox@nwpu.edu.cn, can.wang@UGent.be

magd.abdelwahab@UGent.be

Keywords: Heat-assist USRP, Compressive residual stress, Fretting fatigue, Titanium alloy

Abstract

Compressive residual stress (CRS) is a favourable factor for improving the fatigue and fretting fatigue (FF) properties of metallic materials. In this study, an ultrasonic surface rolling process (USRP) in a high temperature environment was proposed to obtain a more stable CRS field. The surface integrities of ultrasonic rolled titanium alloys at room temperature ( ) and at elevated temperature ( ), including surface roughness, surface hardness, compressive residual stress and microstructure, were measured and compared. The results showed that a deeper plastic deformation layer with more stable CRS was obtained with laser assistance. The fretting fatigue test results showed that the laser-assist USRP (Laser-USRP) achieved higher fretting fatigue resistance than that of the room-temperature USRP, which showed good prospects for industrial anti-fatigue applications.

In this research, TC11 titanium alloy rolled bar was selected as the research object.TC11 titanium alloy is dual-phase titanium alloy, which is mainly used in the aerospace industry for the manufacture of engine compressor blades. The yield strength and tensile strength of the TC11 titanium alloy are 1000 MPa and 1110 MPa , respectively.

In this study, the treatment parameters selected for USRP were: static pressure 600 N , ultrasonic amplitude , vibration frequency 20 kHz , specimen rotational speed , and feed rate . The Laser-USRP was performed using a continuous laser as the heating source. The laser power is 10 W , and the heating temperature is up to . A GPS-100 high frequency fatigue tester was used for fretting fatigue life test, and the fretting fatigue loading were: maximum stress , the stress ratio and the contact stress 196 MPa . Scanning electron microscopy (SEM) was used to observe the fracture morphology, TEM and HRTEM were used to observe the microstructure morphology. a HV-1000 microhardness tester was used to measure the distribution of the hardness along the depth. An X-ray residual stress tester was used to measure the distribution of the CRS.

References

Fan K, Liu D, Zhang X, Liu D, Zhao W, Yang J, et al. Effect of residual stress induced by ultrasonic surface rolling on fretting fatigue behaviors of Ti-6Al-4V alloy. Engineering Fracture Mechanics 2022;259.

Fan K, Liu D, Wang C, Yang J, Liu Y, Zhang X, et al. Effect of contact stress and slip amplitude on fretting fatigue behaviour of ultrasonic surface nanocrystallized TC11 titanium alloy. Journal of Materials Research and Technology 2024;28:4052-64.

Liu C, Liu D, Zhang X, Liu D, Ma A, Ao N, et al. Improving fatigue performance of Ti-6Al4 V alloy via ultrasonic surface rolling process. Journal of Materials Science & Technology 2019;35:1555-62.

Chin KS, Idapalapati S, Ardi DT. Thermal stress relaxation in shot peened and laser peened nickel-based superalloy. Journal of Materials Science & Technology 2020;59:100-6.

Yu L, Saida K, Araki H, Sugita K, Mizuno M, Nishimoto K, et al. Mechanism for stress relaxation behavior of the residual stress improving treatments with water jet peening and buffing. Materials Science and Engineering: A 2020;796:140221.

Attia MH, De Pannemaecker A, Williams G. Effect of temperature on tribo-oxide formation and the fretting wear and friction behavior of zirconium and nickel-based alloys. Wear 2021;476:203722..

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 14-14

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-05-19

Accepted:
2024-06-18

Online:
2024-08-30

Design Optimization of Multi-Directional Porous Sandwich Functionally Graded Plates Reinforced with Graphene Nanoplatelets Based on Isogeometric Analysis and Sinh Cosh Optimizer

Jianfu Bai and Magd Abdel Wahab

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions, and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium

ajianfu.bai@ugent.be, b*magd.abdelwahab@ugent.be.

Keywords: Multi-directional porous sandwich functionally graded plates; Isogeometric analysis (IGA); Sinh Cosh Optimizer (SCHO); Isogeometric Multimesh Design (IMD); NURBS; First natural frequency

Abstract

An optimization design approach for the multi-directional porous sandwich functionally graded plates reinforced with graphene nanoplatelets is proposed based on Isogeometric Analysis (IGA) and a new meta-heuristic optimization algorithm called Sinh Cosh Optimizer (SCHO) [1-3]. An Isogeometric Multimesh Design (IMD) approach is applied to create the coarse mesh and finer mesh for design and analysis of the multi-directional porous sandwich functionally graded plates reinforced with graphene nanoplatelets [4]. Effective material properties are calculated by the HalpinTsai model and the rule of mixture. A free vibration analysis finite element model is developed based on Non-Uniform Rational B-Splines (NURBS) and the Third-order Shear Deformation Theory (TSDT). Finally, SCHO is performed to maximize the first natural frequency with volume constraints by adjusting the design variables, including the layer thicknesses and the ceramic volume fractions at control points. Numerical experiments demonstrate the effectiveness and robustness of the present approach based on IGA and SCHO.

References

Nguyen NV, Nguyen-Xuan H, Lee J. A quasi-three-dimensional isogeometric model for porous sandwich functionally graded plates reinforced with graphene nanoplatelets. Journal of Sandwich Structures & Materials. 2022;24:825-59.

Bai J, Li Y, Zheng M, Khatir S, Benaissa B, Abualigah L, et al. A Sinh Cosh optimizer. Knowledge-Based Systems. 2023;282.

Bai J, Khatir S, Abualigah L, Abdel Wahab M. Ameliorated Golden jackal optimization (AGJO) with enhanced movement and multi-angle position updating strategy for solving engineering problems. Advances in Engineering Software. 2024;194.

Thai S. Optimization of multi-directional functionally graded plates in thermal environment based on 3D isogeometric analysis and adaptive-hybrid evolutionary firefly algorithm. ThinWalled Structures. 2023;190.

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Scientific Books of Abstracts, Vol. 6, pp 15-15

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-05-21

Accepted:
2024-06-18

Online:
2024-08-30

Numerical Simulation of Surface Roughness Considering Shot Peening Surface Modification Technology

Chao and Magd Abdel Wahab

Laboratory Soete, Department of ElectroMechanical, Systems and Metal Engineering, Faculty of Engineering and Architecture, Ghent University, Belgium

Chao.Li@UGent.be, *Corresponding author: magd.abdelwahab@ugent.be

Keywords: Shot Peening (SP); Finite Element Method (FEM); Roughness Parameters; Contact Damage

Abstract

This study explores the enhancement of material surface properties through Shot Peening (SP) technology, with a particular focus on its influence on surface roughness. SP is one of the surface treatment techniques used to modify the near-surface properties of materials, including their mechanical and tribological characteristics . Surface roughness, as modified by surface treatments, has been extensively investigated [3,4]. This study numerically examines the impact of SP on surface roughness. The surface morphology of SP-treated samples can be simulated using various roughness parameters measured from experiments [5]. These parameters include the arithmetic average of profile height, the root mean square average of profile height, and correlation length. Notably, different combinations of SP parameters, such as intensity, shot size, hardness, speed, and coverage ratio can induce distinct roughness parameters. Numerical simulations are then performed using the Finite Element Method (FEM) to analyse the contact pressure. The main aim is to uncover the underlying mechanisms by which roughness affects contact pressure and then to understand how SP-induced modifications enhance wear and fatigue resistance. The expected results of these simulations provide valuable insights into how the surface treatment parameters affect contact performance in specific application scenarios. By optimizing surface roughness, SP significantly alters the contact performance of specimens, which is critical for wear and fatigue behaviour.

References

Qutaba S, Asmelash M, Saptaji K, Azhari A. A review on peening processes and its effect on surfaces. Adv. Manuf. Technol 120: 4233-4270 (2022)

Li C, Amanov A, Wang C, Wang L, Abdel Wahab M. Effect of laser shock peening on fretting wear behaviour of AISI 304 stainless alloy. Tribol Int 193: 109386 (2024)

Liu K K, Hill M R. The effects of laser peening and shot peening on fretting fatigue in Ti-6Al4V coupons. Tribol Int 42: 1250-62 (2009)

Li C, Amanov A, Li Y, Wang C, Wang D, Abdel Wahab M. Prediction of residual stress distribution induced by ultrasonic nanocrystalline surface modification using machine learning. Adv Eng Softw 188: 103570 (2024)

Vázquez J, Navarro C, Domínguez J. Experimental results in fretting fatigue with shot and laser peened Al 7075-T651 specimens. Int J Fatigue 40: 143-53 (2012)

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 16-16

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-05-22

Accepted:
2024-06-18

Online:
2024-08-30

A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Lan Ngoc-Nguyen , Bao-Lam Nguyen , Thanh Bui-Tien and Magd Abdel Wahab

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Belgium

Faculty of Civil Engineering, University of Transport and Communications, Vietnam

Institut supérieur de mécanique de Paris (ISAE-Supméca), Laboratoire Quartz, 3 rue Fernand Hainaut, 93407 Saint-Ouen-sur-seine cedex, France

ngoclan.nguyen@ugent.be, bao-lam.nguyen@isae-supmeca.fr, btthanh@utc.edu.vn, magd.abdelwahab@ugent.be

Keywords: Structural Damage Identification, Artificial Neural Network, African Vulture Optimization Algorithm.

Abstract

Structural Health Monitoring (SHM) is a critical aspect of ensuring the safety and longevity of infrastructure, particularly bridges. Effective damage identification in bridge structures is essential for timely maintenance in order to prevent catastrophic failures. Traditional methods of damage identification often face challenges in accuracy and efficiency, necessitating the development of advanced techniques. This paper presents a novel hybrid approach for structural damage identification using an optimization algorithm and Artificial Neural Network (ANN). Specifically, we propose the integration of the African Vulture Optimization Algorithm (AVOA) with ANN to enhance the performance of damage identification models. AVOA is employed to optimize the weights and biases of the ANN model, thereby improving the model's accuracy in predicting both the location and severity of damages in bridge structures. The proposed methodology involves two main stages. First, AVOA optimizes the initial parameters of the ANN, ensuring that the network is well-suited to the specific characteristics of the damage identification problem. Second, the optimized ANN is trained on a dataset of different simulated damage scenarios of a calibrated bridge structure. The results indicate that our hybrid approach demonstrates significant improvements in the precision and reliability of damage identification compared to traditional ANN models without optimization. The hybrid AVOA-ANN approach offers a robust and efficient solution for the accurate identification of structural damage, contributing to the advancement of SHM practices and the safety of critical infrastructure.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 17-17

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-06-09

Accepted:
2024-06-18

Online:
2024-08-30

Analysis of Single Lap Functionally Graded Adhesive Joints with Different Adherends

Yanan Zhang , Magd Abdel Wahab

Soete Laboratory, Department of Electrical Energy, Metals, Mechanical Constructions, and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium

Yanan.Zhang@UGent.be, Magd.AbdelWahab@UGent.be

Keywords: Functionally Graded Adhesive Joints; Finite Element Method; Stress Analysis.

Abstract

Adhesively bonded joint is one of the most widely used joining structures in aerospace, ships, automobiles, energy and other fields in recent years. It has low manufacturing cost and structural weight than the traditional joining techniques [1]. The performance evaluation and influencing factors of adhesive joints are always important in this field. When two different materials are joined by adhesive, the interfacial stress distribution along the direction of the bonding line is not uniform, and the higher stress concentration at the end of the interface often becomes the reason for the failure point of the joint [2-4]. The mixed adhesive joint and Functionally Graded Adhesives (FGAs) are utilized to reduce the stress concentrations at the edges of the adhesive layer and improve the joint strength [5,6]. This study investigated the improvement of bonded joint strength by hybrid adhesives using Finite Element Method (FEM). The adherends are aluminum, steel and carbon/epoxy composite and the adhesives are epoxy with different elastic modulii. It has been shown that the improvement of the joint strength is also affected by different adherends. For the joints with different combinations of adherends, the application of FGA show different decrease in stress concentration and increase in strength.

References

Marques, E. A. S., et al. "Improving joint performance through graded materials and geometries." Advances in Structural Adhesive Bonding. Woodhead Publishing, 2023, 1077-1104.

Kundurthi, S., and Haq, M. "Substrate Thickness Optimization in Multi-Material Single Lap Adhesive Joints." ASME. J. Appl. Mech. May 2024, 91(5): 051007.

Çay, M., & Özer, H.. Viscoelastic model to evaluate the shear and peel stresses in the two-adhesive bonded lap joints. Journal of Adhesion Science and Technology, 2024, 38(9): 1491-1522.

Kumar D, Budarapu PR, Pradhan AK. Numerical analysis of lap shear joints made of functionally graded materials. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 2023, 45(2): 94.

Jia Z, Yu J, Liu Q, et al. Functionally graded adhesive joints with exceptional strength and toughness by graphene nanoplatelets reinforced epoxy adhesives[J]. International Journal of Adhesion and Adhesives. 2023, 125: 103402.

Khan MA, Tipireddy R, Dattaguru B, Kumar S. Stochastic modeling of functionally graded double lap adhesive joints. Mechanics of Materials. 2023, 177: 104553.

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Scientific Books of Abstracts, Vol. 6, pp 18-20

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-06-18

Accepted:
2024-06-18

Online:
2024-08-30

Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Nao-Aki Noda

Kyushu Institute of Technology, Kitakyushu 804-8550, Japan

nao592noda@gmail.com

Keywords: Work roll, Fatigue strength, Sleeve roll, Residual Stress, Sleeve slip, Slip damage.

References

H. Shimoda, S. Onodera, K. Hori, Study on the residual deflection of large sleeved back-up rolls: 4th Report, Residual stresses of sleeved rolls. Trans. Jpn. Soc. Mech. Eng. 32 (1966) 689694.

T. Irie, K. Takaki, I. Tsutsunaga, Y. Sano, Steel strip and section steel and thick rolling, processing. Tetsu-to-Hagane 65 (1979) 293.

H. Takigawa, K. Hashimoto, G. Konno, S. Uchida, Development of forged high-speed-steel roll for shaped steel. CAMP-ISIJ 16 (2003) 1150-1153.

Y. Sano, Recent advances in rolling rolls. Proc of the No. 148-149 Nishiyama Memorial Technology Course, Tokyo, Japan (1993) 193-226.

Y. Sano, Fatigue failure problem in the inside of roll body for hot strip rolling- Crack initiation problem and its estimation in the actual plant. The 245th JSMS Committee on Fatigue of Materials and the 36th JSMS Committee on Strength Design, Safety Evaluation (1999), 40.

E. Matsunaga, T. Tsuyuki, Y. Sano, Optimum shrink fitting ratio of sleeve roll (Strength design of shrink fitted sleeve roll for hot strip mill-1). CAMP-ISIJ, 11 (1998) 362. .

S. Tutumi, S. Hara, S. Yoshi, The residual deflection of sleeved backup-up rolls. Tetsu-toHagane 57(5) (1971) 818-822.

S. Spuzic, K.N. Strafford, C. Subramanian, G. Savage, Wear of hot rolling mill rolls: an overview. Wear 176(2) (1994) 261-271. .

T. Hattori, Y. Kamitani, K. Sugino, H. Tomita, Y. Sano, Super cermet rolls for manufacturing ultra-fine-grained steel, International Conference on Tribology in Manufacturing Processes ICTMP 2007 International Conference 24-26, Yokohama, September 2007.

S. Hamayoshi, E. Ogawa, K. Shimiz, N.-A. Noda, Kishi K, S. Koga, Development of large ceramic rolls for continuous hot-dip galvanized steel sheet production lines. Sokeizai 51-12 (2010) 54-59.

N.-A. Noda, D. Suryadi, S. Kumasaki, Y. Sano and Y. Takase, Failure analysis for coming out of shaft from shrink-fitted ceramics sleeve, Engineering Failure Analysis, 57 (2015) 219-235.

G. Zhang, N.-A. Noda, Y. Sano and Y. Takase, Identification of driving out force of shaft towards preventing coming out failure of shaft in shrink-fitted ceramic sleeve roll, Engineering Failure Analysis, 135 (2022) 106155.

N.-A. Noda, H. Sakai, Y. Sano, Y. Takase, Y. Shimoda, Quasi-equilibrium stress zone with residual displacement causing permanent slippage in shrink-fitted sleeve rolls. Metals 8 (2018) 998. .

H. Sakai, N.-A. Noda, Y. Sano, G. Zhang, Y. Takase, Effect of driving torque on the interfacial creep for shrink-fitted bimetallic work roll. Tetsu-to-Hagane 105-12 (2019) 28-36. .

N.-A. Noda, R.A. Rafar, H. Sakai H, X. Zheng, H. Tsurumaru, Y. Sano, Y. Takase, Irreversible interfacial slip in shrink-fitted bimetallic work roll promoted by roll deformation. Eng Fail Anal 126 (2021) 105465.

R.A. Rafar, N.-A. Noda, H. Tsurumaru, Y. Sano Y, Y. Takase, Novel design concept for shrinkfitted bimetallic sleeve roll in hot rolling mill. Int J Adv Manuf Technol 120 (2022) 3167-3180. .

N.-A. Noda, R.A. Rafar, Y. Taruya, X. Zheng, H. Tsurumaru, Y. Sano, Y. Takase, K. Nakagawa, K. Kondo, Interfacial slip verification and slip defect identification in shrink-fitted bimetallic sleeve roll used in hot rolling mill, Tribology International, 175 (2022) 107793.

N.-A. Noda, R.A. Rafar, X. Zheng, H. Tsurumaru, Y. Taruya, Y. Sano, Y. Takase, Fatigue strength analysis of bimetallic sleeve roll by simulation of local slip accumulation at shrink-fit interface caused by roll rotation, Int J Adv Manuf Technol, 125 (2023) 369-385.

Y. Murakami, Metal fatigue: effects of small defects and nonmetallic inclusions. Elsevier Science, Oxford UK, 2002.

T. Ikeda T, N.-A. Noda, Y. Sano, Conditions for notch strength to be higher than static tensile strength in high-strength ductile cast iron. Eng Fract Mech 206 (2019)75-88.

N.-A. Noda, K. Hu, Y. Sano, K. Ono, Y. Hosokawa, Residual stress simulation for hot strip bimetallic roll during quenching Steel Research International, 87-11 (2016) 1478-1488.

N.-A. Noda, K. Hu, Yoshikazu Sano and Yusuke Hosokawa, Usefulness of Non-Uniform Heating and Quenching Method for Residual Stress of Bimetallic Roll: FEM Simulation Considering Creep Behavior, Steel Research International, 88-3 (2017) 1600165.

N.-A. Noda, Y. Sano, M. R. Aridi, K. Tsuboi, N. Oda, Residual stress differences between uniform and non-uniform heating treatment of bimetallic roll: Effect of creep behavior on residual stress. Metals 8 (2018) 952.

N.-A. Noda, M. R. Aridi, R. Torigoe, K. Tsuboi, Y. Sano, Reduction of Residual Stress in Bimetallic Work Roll by Tempering, Journal of Japan Society for Technology of Plasticity, 61 (2020) 183-189.

N.-A. Noda, M. R. Aridi, Y. Sano, Tempering effect on residual stress in bimetallic roll, 35 (2021) 2140044.

M. R. Aridi, N.-A. Noda, Y. Sano, K. Takata, Z. Sun, Y. Takase, Fatigue failure risk evaluation of bimetallic rolls in four-high hot rolling mills, Fatigue and Fracture of Engineering Materials and Structures, 45 (2022) 1065-1087.

M. R. Aridi, N.-A. Noda, Y. Sano, K. Takata and Z. Sun, Fatigue failure analysis for bimetallic work roll in hot strip mills Steel Research International, 93 (2022) 2100313.

M. R. Aridi, R.A. Rafar, N.-A. Noda, Z. Sun, Y. Sano, K. Takata and Y. Takase, Residual stress simulation for bimetallic sleeve roll constructed by shrink-fitting in comparison with bimetallic solid roll, Journal of Manufacturing Processes, 107 (2023) 252-267.

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Scientific Books of Abstracts, Vol. 6, pp 21-21

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-06-19

Revised:
2024-07-31

Accepted:
2024-07-31

Online:
2024-08-30

The New Design of an Elevator's Door Mechanism

Huseyn MIRZAYEV , Yusuf ŞAHIN

humirzeyev@beu.edu.az, b*yusuf.sahin@ostimteknik.edu.tr

¹Department of Mechanical Engineering, Faculty of Engineering, Baku Engineering University, ORCID ID:orcid.org/0000-0002-1977-3914

Department of Mechanical Engineering, Faculty of Engineering, OSTIM Technical University, 100 Yıl Blv.55/F, Ostim, Yeni Mahalle, Ankara, Turkey Tel: +90 03123861092

Mobile: +90530 847 1954,

ORCID ID: orcid.org/000-0001-9615-6437

*Corresponding author: yusuf.sahin@ostimteknik.edu.tr

Keywords: Elevator, elevator door mechanism, poly V-belt drives, metal-polymer gear, prototype gearbox, design/manufacture

Abstract

In this article, the mechanism of moving the doors of a passenger elevator with a poly-Vbelt drive is studied and their disadvantages are examined, and a new type of driven door movement mechanism is designed, manufactured and tested. In the proposed new design, instead of a two-stage poly V- belt transmission with a large gear ratio, a three-stage package of gear box with metalpolymer gears is preferred. Each pinions are made from steels while gears are made from polymers. It fundamentally consists only of two shafts and three stages spur gearings. Due to making the prototype of gear box with three-stages, overall size of door mechanism decreases about 1.8 times in compare to the old driven door mechanism. Further, sound level is around 68 dB , which is lower than the maximum limit of door mechanism. The overall velocity ratio is reduced slightly through a new designed/produced with three-stages of spur gear system.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 22-23

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-06-20

Accepted:
2024-06-22

Online:
2024-08-30

Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

Shiqiang Qin , Ao Zhong , Jiabin Zhang , Liqiang Gao

School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei China

School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Sha anxi China

State Key Laboratory of Bridge Intelligent and Green Construction, Wuhan 430034, Hubei China

shiqiangqin@whut.edu.cn, mrzhongao@whut.edu.cn, zhangjiabin@stu.xjtu.edu.cn, gaoliqiang1984@126.com

Keywords: Cable-stayed bridge; Hot spot stress; Steel-UHPC composite deck; Residual stress; Fatigue assessment

References

R.J. Connor, Manual for design, construction, and maintenance of orthotropic steel deck bridges, R. United States. Federal Highway Administration. 027 (2012).

S.H. Zhang, X.D. Shao, J.H. Cao, et al, Fatigue performance of a lightweight composite bridge deck with open ribs, J. Journal of Bridge Engineering. 217 (2016) 04016039.

S.D. Liang, Z.Y. Jie, K.N. Wang, Numerical simulation and ultrasonic measurement on welding residual stresses of full penetration U-shaped stiffening ribs, J. Structures. 46 (2022) 322-335.

X.Y. Feng, K.F. Zheng, J.L. Heng, et al, Fatigue performance of rib-to-deck joints in orthotropic steel deck with PWHT, J. Journal of Constructional Steel Research. 196 (2022) 107420.

B.J. Wang, H. De Backer, X.Y. Zhou, et al, Two-stage crack growth-based fatigue damage evaluation of orthotropic steel decks considering vehicle overload, J. Structure and Infrastructure Engineering. 175 (2021) 591-604.

B. Cheng, H. Abdelbaset, H.T. Li, et al, Fatigue behavior of rib-to-floorbeam welded connections in UHPC reinforced OSDs subjected to longitudinal flexural, J. Engineering Failure Analysis, 137 (2022) 106383.

Y. Zeng, S.X. Wang, X.F. Xue, et al, Fatigue Life Evaluation of Orthotropic Steel Deck of Steel Bridges Using Experimental and Numerical Methods, J. Sustainability. 157 (2023) 5945.

H. Fang, N. Iqbal, G. Van Staen, et al, Structural optimization of rib-to-crossbeam joint in orthotropic steel decks, J. Engineering Structures. 248 (2021) 113208.

H. Fang, N. Iqbal, G. Van Staen, et al, Experimental and numerical investigation of stress concentration at rib-to-crossbeam joint, J. International Journal of Steel Structures, 211 (2021) 360-380.

H. Abdelbaset, B. Cheng, L. Tian, et al, Reduce hot spot stresses in welded connections of orthotropic steel bridge decks by using UHPC layer: Experimental and numerical investigation, J. Engineering Structures. 220 (2020) 110988.

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Scientific Books of Abstracts, Vol. 6, pp 24-24

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-07-04

Accepted:
2024-07-07

Online:
2024-08-30

Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Fang Yuan , Yazhou Xu

School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education (XAUAT), Xi'an 710055, China

yfyjzltx@163.com, xuyazhou@xauat.edu.cn

Keywords: Fretting fatigue, Crack initiation life, Scale coupling, Crystal plasticity, Continuum damage mechanics

Abstract

Fretting fatigue is a common failure mode in the field of engineering, which often occurs in the interfaces between components. Due to the complex multiaxial loading conditions and high stress gradients in the contact edge region, it leads to a shorter fatigue life compared to plain fatigue. To predict the initiation of fretting fatigue cracks and in-depth understanding of the fatigue damage mechanism, it is essential to investigate the relationship between macroscopic damage and microscopic physical parameters of the material in the contact area. By introducing a scale coupling relationship based on power law, a two-scale model for the initiation life of fretting fatigue cracks is established by combining macroscopic continuum damage mechanics (CDM) with microscale crystal plasticity finite element method (CPFEM). The simulation results show that the proposed two-scale method predicts the initiation life of fretting fatigue more accurately than the single-scale CDM model. At low stress levels, the accumulated energy dissipation rate can be clearly divided into two stages with a turning point, while at high stress levels, the accumulated energy dissipation rate exhibits a relatively uniform damage process. Furthermore, the two-scale model proposed in this paper provides a physical explanation for the initiation of fretting fatigue cracks based on microscale information to a certain extent.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 25-25

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

Xianda Xie , Shuting Wang and Xiaobing

School of Advanced Manufacturing, Nanchang University, Nanchang, 330031, China

School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

@qq.com, wangst@hust.edu.cn,

Keywords: Multi-material topology optimization; Isogeometric analysis; Truncated hierarchical Bspline; Alternating active-phase algorithm

Abstract

A novel adaptive multi-material topology optimization (TO) is presented in this work based on suitably graded truncated hierarchical B-spline in the framework of isogeometric analysis (IGA). The isogeometric mesh is locally refined and coarsened during the topology process to achieve the analysis and design meshes for multi-material design problems. Adaptive marking strategy is established based on the summation of density variation indicators of all material phases, which plays a critical role in obtaining elements with different phases to be refined and coarsened. Besides, the graded constraint is imposed on the hierarchical isogeometric mesh in order to improve the numerical accuracy of multi-material problem solved by adaptive IGA and ensure the boundary quality of the converged multi-material structures. Through an alternating active-phase algorithm in a hierarchy form, the proposed isogeometric multi-material TO model can be divided into finite two-phase adaptive isogeometric optimization sub-problems, of which the sensitivity analysis is derived in terms of an adaptively adjusted filter. In comparison with current isogeometric multi-resolution multimaterial method, the proposed adaptive one can obtain basically optimized multi-material designs with much improved efficiency. Several numerical examples are applied to verify the robustness and effectiveness of the proposed approach.

References

Hughes TJR, Cottrell JA, Bazilevs Y. Isogeometric analysis: CAD, finite elements, NURBS, exact geometry and mesh refinement. Comput. Methods Appl. Mech. Eng. 2005;194(39):41354195.

Yang A, Wang S, Luo N, Xie X, Xiong T. (2022). Adaptive isogeometric multi-material topology optimization based on suitably graded truncated hierarchical B-spline. Composite Structures, 294, 115773.

Xie X, Yang A, Jiang N, Zhao W, Liang Z, Wang S. Adaptive topology optimization under suitably graded THB-spline refinement and coarsening. Int. J. Numer. Methods Eng. 2021; 122(20): 5971-5998.

Giannelli C, Jüttler B, Speleers H. THB-splines: The truncated basis for hierarchical splines. Comput. Aided Geom. Des. 2012;29(7):485-498.

Tavakoli R, Mohseni SM. Alternating active-phase algorithm for multimaterial topology optimization problems: a 115-line MATLAB implementation. Struct. Multidiscip. Optim. 2014; 49(4):621-642.

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Scientific Books of Abstracts, Vol. 6, pp 26-26

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Submitted:
2024-07-30

Accepted:
2024-07-31

Online:
2024-08-30

Thermal and Mechanical Property of Carbon Fiber Reinforced Composite

Yusuf Şahin

¹Department of Mechanical Engineering, Faculty of Engineering, OSTIM Technical University, 100 Yil Blv.55/F, Ostim, Yeni Mahalle, Ankara, Turkey

Tel: +90 03123861092 Mobile: +90530 847-1954.

Department of Mechanical Engineering Faculty of Engineering&Architecture of Nişantaşı University, 1453 Neotech Kampus, Maslak, Sarıyer, İstanbul, Turkey

Tel:+90 (212) 2101010.

yusuf.sahin@ostimteknik.edu.tr, yusuf.sahin@nisantasi.edu.tr

Keywords: Carbon fibers composite; Thermo-gravimetric analysis; TGA/ DSC; Peak degradation temperature; Mechanical property; Water absorption

Abstract

Thermal property of carbon fiber-reinforced polymer composites (CRFPs) fabricated through vacuum assisted resin transfer molding method (VARTM) is investigated using ThermoGravimetric Analysis/Differential Scanning Calorimetry tool. This analysis on laminate composites with three different orientations are carried out at room temperature up to . Also, mechanical and water absorption behavior of polymeric composites are determined. orientation sample including carbon fiber in epoxy resin indicates that the glass transition temperature is higher and mass loss in percentage is lower than those of others due to higher of mechanical strength. Therefore, these composites reveal the most thermally stable among the others. Furthermore, lower amounts of water absorption rates are obtained at -orientation and -orientation composite ( and ), respectively. Whereas, some variations occur for -orientation with increasing the soaking times.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 27-28

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Reinforcement of Living Space in the Bus Using rCF (Recycled Carbon Fibres) from Expired Prepreg from the Aircraft Industry

Miguel-Angel Martinez

Carlos III University of Madrid, Spain

mamc@ing.uc3m.es

Keywords: Expired prepreg; composites; Adhesives; Recycled carbon fiber; Reinforcement hollow steel pillars.

Abstract

Carbon fibres pre-impregnated in epoxy resin are extensively utilized in the aircraft industry and are typically stored at low temperatures to slow down the curing reaction. Once the manufacturer's specified storage time is exceeded, the material, known as expired prepreg, must be removed from the production process. This results in manufacturing costs for the aeronautical sector and poses an environmental challenge due to limited recycling options. The expired prepreg used in this study comprises expired prepreg. Moreover, with the increasing mobility of the population, collective passenger transport by bus, coupled with the imperative to conserve energy, mandates the enhancement of safety measures without augmenting vehicle weight. In public transport vehicles, overturning accidents constitute a significant proportion of incidents leading to numerous injuries and fatalities. Hence, the strength and rigidity of the bus body are pivotal for passive safety. The steel pillars between the windows, which support the roof, represent the weakest part of the structure. In the event of a rollover accident, these pillars must withstand bending forces at moderate impact speeds to prevent the deformed structure from encroaching upon passengers' living space [ 1,2 ]. Structural reinforcement of steel pillars with composite materials can enhance their energy absorption and bending strength. Steel structures reinforced with CFRP (carbon fibres-reinforced polymer) can mitigate deformation during bus overturning [3]. The addition of four layers of CFRP at the top and bottom of the pillar increases its bending strength by , with a higher energy absorption rate. In subsequent studies [4], CFRP has been replaced by sheets of expired prepreg joined using various low modulus epoxies. This type of reinforcement achieved a maximum resistance lower than CFRP, yet absorbed more energy before deforming, with only a increase in weight. To enhance the performance of expired prepreg as reinforcement, the mechanical separation of fibres without resin removal (rCF) has been investigated, yielding reinforcements with favourable mechanical properties [5,6]. Expired aeronautical prepreg HexPly M21EV/IMA, supplied by Hexcel Composites in Madrid, Spain, was utilized to manufacture reinforcements for the pillars. Prior to reinforcement application, the prepreg was mechanically reduced to a thickness of . The rCFs were affixed to the steel pillar using Sikapower 1277 epoxy, following the same configurations as in previous studies. The connection between the reinforcement, matrix, and steel surface exhibits excellent characteristics, absorbing greater deformation energy when the pillar deflects due to bus overturning. A high-value aeronautical prepreg has been successfully recycled, circumventing the need for disposal, through a process that retains the epoxy (rFC). A composite consisting of unidirectional carbon fibers has been developed, offering a cost-effective solution for reinforcing steel pillars in buses. This approach minimizes weight increase while enhancing rollover resistance.

References

Regulation No 66 of the United Nations Economic Commission for Europe (UN/ECE) Uniform technical requirements relating to the approval of large vehicles for the transport of passengers with regard to the strength of their superstructure (OJ L 321 06.12.2007, p.55, ELI: http://data.europa.eu/eli/reg/2007/66(2)/oj)

Bai J., Meng G., Wu H., Zuo W. Bending collapse of dual rectangle thin-walled tubes for conceptual design. Thin-Walled Struct. 135(2019)185-195.doi: 10.1016/j.tws.2018.11.014

D. Lavayen, J.A. Butenegro, M.J. lopez Boada, M.A Martinez; J.A. Rodriguez. Theoretical and experimental study of the bending collapse of partially reinforced CFRP-Steel square tubes. Thin-Walled Struct. 177-109456 (2022). doi: 10.1016/j.tws.2022.109457

M.A. Martínez, D. Lavayen, J.A. Butenegro, M.J. Lopez-Boada, J. Abenojar, M. Bharami. Carbon Fiber Composites-Steel Joints for Strengthening Bus Structures. 14th European Adhesion Conference & 7th World Congress on Adhesion and Related Phenomena", 10-13 September 2023 Garmisch-Partenkirchen, Germany

J.A. Butenegro, M. Bahrami, Y. Swolfs, J. Ivens, M.A. Martínez, J. Abenojar. Novel Thermoplastic Composites Strengthened with Carbon Fiber-Reinforced Epoxy Composite Waste Rods: Development and Characterization. Polymers, 14-3951 (2022). doi: 10.3390/polym14193951

J.A. Butenegro, M. Bahrami, Y. Swolfs, J.; Ivens, J, M.A. Martínez, J. Abenojar. Novel Sustainable Composites Incorporating a Biobased Thermoplastic Matrix and Recycled Aerospace Prepreg Waste: Development and Characterization. Polymers, 15, 3447 (2023).

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The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 29-31

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

Juana Abenojar and Miguel Angel Martínez

University Carlos III de Madrid, Material Science and Engineering Dept., Madrid, Spain

a,*abenojar@ing.uc3m.es, bmamc@ing.uc3m.es,

Keywords: ITO; Epoxy resin; Wear; Friction Coefficient; Hardness, Bending Strength

Abstract

In contemporary times, the engineering landscape and its requisites necessitate specific materials, hence composite materials emerge as the solution. They leverage the finest properties of various materials to create a singular material tailored to meet particular needs. The composite materials can be considered multifunctional, due to achieve multifunctionality through the proper selection of different materials combined together to form it. Thus, the electrical, mechanical, optical, and magnetic properties can be changed. Therefore, the electrical, mechanical, optical, and magnetic properties can be changed. Such as, nano-silica can increase the toughness of epoxy resins [1,2], cork particles play the same role [3], nano-carbides can modify cavitation erosion properties [4]. Present-day society seeks energy solutions, infrastructural advancements, and innovations rooted in smart and multifunctional materials within the realm of the Internet of Things (IoT) framework. This technology thrives on connectivity and mandates responsive materials for the advancement of cutting-edge sensors and actuators. These innovative concepts might play a role soon in other field, such as Adaptive Building Facades, as their dynamic behavior could optimize the performance of a building [5]. The latest iterations of these sensors and actuators rely on polymer composites, which can be fashioned using conventional methods like solvent-casting or extrusion. However, there's a growing shift towards additive techniques like 3D printing. These methods enable customized, cost-effective, mass production, and facilitate seamless integration into devices across various scales and dimensions [6]. Indium oxide is widely utilized as a raw material for transparent conductive films due to its high conductivity and exceptional transparency. Tin-doped indium oxide (ITO) finds extensive industrial application as a coating material for energy-saving lamps, transparent electrodes in watches, LCD screens, office equipment, and automobile measuring instruments. It is also employed as a coating material for screen panels, selectively permeable membranes, and transparent conductive materials for solar cells. Moreover, it can serve as a coating material for anti-static agents in spacecraft applications [7]. This project analyzes the characteristics of a composite consisting of an epoxy resin matrix and a reinforcement of indium tin oxide particles known as ITO, for its possible use as a conductive coating, as the main objective. In this work the part corresponding to mechanical tests and wear is presented, being the preliminary studies to reach the main objective. The epoxy resin utilized is sourced from the supplier FEROCA, known for its molding products. Sold under the name "Epofer," it comprises two components: the epoxy resin EX401 and the essential hardener E432. Without the hardener, the resin remains uncured. The recommended mixing ratio is 100 parts resin to 32 parts hardener. Tailored for part replication in silicone molds, its fluidity renders it ideal for producing test specimens. Notably, it boasts a Brookfield viscosity of 1300 cps and a density of . The working time extends to 90 minutes, while full curing requires 24 hours. The indium titanium oxide (ITO) available is from the manufacturer CERAC Inc. According to the data sheet, the proportion of each oxide is and by weight, with purity and density . It is presented in the form of aggregates or stones of between 3 and 12 mm , so it is necessary to grind it progressively until a powder with particles of between 200 and is obtained. The grinding is done manually in a marble mortar, on the one hand to withstand the efforts given the hardness of the stones, and on the other hand, to avoid contaminating the raw material.

References

S. Sprenger. Review: Nano-silica Toughened Epoxy Resins. Polymers 12 (2020) 1777.

J. Abenojar, J. Tutor, Y. Ballesteros, J.C. del Real, M.A. Martínez. Erosion-wear, mechanical and thermal properties of silica filled epoxy nanocomposites. Compost. B-Eng. 120 (2017) 42-53.

A.Q. Barbosa, L.F.M. da Silva, J. Abenojar, M. Figueiredo, A. Öchsner. Roughness of a brittle epoxy resin reinforced with micro cork particles: Effect of size, amount and surface treatment. Compos. Pt. B-Eng 114 (2017) 299-310.

J. Abenojar, J. Tutor, Y. Ballesteros, J.C. del Real, M.A. Wear and cavitation effect in an epoxy filled with boron and silicon nano-carbides. Int. J. Fracture Fract. Wear 3 (2015) 167-173.

M. Juaristi, A. Monge-Barrio, U. Knaack, T. Gómez-Acebo. Smart and multifunctional materials and their possible application in façade systems. J. Façade Des. Eng. 6/3 (2018) 19-33.

D.G. Bekas, Y. Hou,Y. Liu, A. Panesar. 3D printing to enable multifunctionality in polymer-based composites: A review. Compos. Pt. B-Eng 179 (2019) 107540.

D.M. Speckman, C.A. Jackson. Synthesis of indium oxide microspheres for antistatic spacecraft coatings. Materials Research Society Symposium - Proceedings 372 (1995) 247-252.

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Scientific Books of Abstracts, Vol. 6, pp 32-32

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

YANG Qiang , BAI Chun Yu and WANG Bin Wen

National Key Laboratory of Strength and Structural Integrity, Aircraft Strength Research Institute of China, Xi'an, Shaanxi, 710065, China

yqiang1230@163.com, baichunyu2006@163.com, asriwbw@vip.163.com

Keywords: Impact fatigue; Three-point bending; Failure characteristics; Damage mechanism.

Abstract

Carrier-based aircraft takeoff and landing devices endure repeated high-speed, high-energy, and high-load impacts during operation. This repeated impact results in fatigue damage, a primary cause of failure in these devices, commonly known as impact fatigue. To address multiple impact fatigue failures in the takeoff and landing process of carrier-based aircraft, an investigation into the three-point bending impact fatigue characteristics of ultra-high-strength steel 23 Co 14 Ni 12 Cr 3 MoE (abbreviated as A100 material) was conducted using experimental and microscopic techniques. A reproducible impact loading device for three-point bending tests was devised, leveraging a drop hammer impact tester. This innovative setup enabled the proposal of a three-point bending impact fatigue testing method. Test specimens featuring U-shaped, V- , and V- notches were designed, drawing inspiration from the Charpy pendulum impact test for metallic materials (GB/T 229-2007). Impact fatigue testing was then performed on the drop hammer tester across five distinct energy levels: 25J, 30J, 35J, 40J, and 45J. The study comprehensively examined the load response, energy absorption, and fatigue life of the A100 material in relation to the number of notches and impacts. Post-experiment analysis using a light microscope and SEM electron microscope revealed key morphological features of the A100 material's impact fatigue fracture surface: the crack initiation zone, stable crack propagation zone, rapid crack propagation zone, and shear lip area. Notably, as impact energy rose, the crack propagation zone expanded, while the shear lip area contracted.These findings contribute significantly to understanding the fatigue behavior of A100 material under repeated impact conditions, critical for enhancing the durability and safety of carrier-based aircraft takeoff and landing devices.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 33-33

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

Keywords: Fatigue; Creep; Shakedown; Bearing cage; Large size bearing; Nonlinear viscoelasticity; PEEK; Fibers reinforced polymer; Finite Elements; Sub-modeling.

Abstract

A single pocket cage is the SKF product, which is used in Large Size Bearings for wind industry. The function of a bearing cage is to hold, guide and separate rolling elements, and differently from the conventional cage, the current one consists of segments, which eases the bearing assembly and reduces its weight. The long life challenge ( 25 years!) requires considering fatigue, and since the single pocket cage is made of PEEK polymer, it is also susceptible to creep (in near room temperature), which enhances fatigue damage. The current work proposes the numerical model capturing non-linear viscoelasticity of PEEK. The mechanical behavior of this material is identified in uniaxial tension test and is modeled in Finite Elements (FE) by means of the Parallel Rheological Framework (this numerical tool has been recently implemented in the commercial software ABAQUS). The current FE model enables to apply cyclic loading, simulating the material response of cage when it operates in running bearing. By applying sub-modeling technique only a small domain is modeled which improves the computational time efficiency. The sub-model domain corresponds to the cage region, where the stress is high resulting to the material yielding, fatigue/creep degradation (due to inelastic cyclic deformation) and initiation of fatigue crack. The FE results were combined with the test data, in attempt to relate the numerically predicted damage to the cage life. The development of irreversible deformation during cyclic loading, shakedown analysis and the stress volume effect, are the main focuses of the current work.

Yuri Kadin, Gerrit-Jan Dop, Richard Schaake, Gijs de Kortand Marcus Boehm

SKF Research & Technology Development, Houten, The Netherlands
SKF Factory, Schweinfurt, Germany
yuri.kadin@skf.com, gerrit-jan.dop@skf.com, r.schaake@gmail.com, gijs.de.kort@skf.com, marcus.boehm@skf.com

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 34-34

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

Jiang Xiaojun

State Key Lab for Strength and Vibration of Mechanical Structures, Soft Machines Lab, Department of Engineering Mechanics, Xi'an Jiaotong University

Keywords: elastic dissipater, structure, hydrogel adhesion

Abstract

Introducing inelastic dissipaters can enhance the adhesion of hydrogels. However, the adhesion energy enhanced by inelastic dissipaters dramatically decreases when the adhesion interface is loaded repeatedly. Here we achieve tough adhesion of hydrogels by introducing a structure of a pillar array to the adhesion interface as elastic dissipaters. Each pillar undergoes large deformation before debonding. Once debonded, all the elastic energy stored in the pillars is released, and the adhesion energy is greatly improved. As a proof of the concept, we adhere a piece of polyacrylamide hydrogel to a piece of polyacrylic acid hydrogel and measure the adhesion energy by a 90 -degree peel test. The adhesion energy is for the adhesion without structures and is for the adhesion with structures. We apply the pull-off test on a pillar unit and estimate the adhesion energy enhanced by the pillars using a simplified model, which is in good agreement with the experimental results. We conduct experiments to study the influence of the height and width of the structures on the adhesion energy. The mechanism of enhancement as well as the influence of geometric parameters is further studied by using finite element method. The proposed mechanism provides a simple method of structural design to enhance hydrogel adhesion.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 35-35

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Fatigue of Dual Crosslink Hydrogels with Metal-Ligand Coordination Bonds

Zheng Yijian

State Key Lab for Strength and Vibration of Mechanical Structures, Soft Machines Lab, Department of Engineering Mechanics, Xi'an Jiaotong University, Xi'an 710049, China

yjzheng@stu.xjtu.edu.cn

Keywords: Hydrogel; Fatigue; Metal coordination bonds; Fatigue threshold

Abstract

Hydrogels are used as soft and stretchable components for diverse devices and machines requiring load-bearing capabilities, necessitating endurance against fatigue. Dynamic bonds offer a potent strategy for designing fatigue-resistant hydrogels. However, the precise role of dynamic bonds in fatigue remains elusive. Here, we investigate hydrogels with diverse metal coordination bonds through various experiments. Experiments show that while strong coordination bonds enhance fracture toughness, they lower the fatigue threshold. Conversely, weak coordination bonds exhibit lower fracture toughness but a higher fatigue threshold. Analysis of the relationship between dynamic bonds and fatigue mechanisms holds significant implications for the design of anti-fatigue self-repairing materials.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 36-36

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

A Review on the Fatigue Cracking of Twin Boundaries: Crystallographic Orientation and Stacking Fault Energy

Li Linlin

Northeastern University, China

lill@ral.neu.edu.cn

Keywords: Twin boundary; Grain orientations; Fatigue cracking; Slip bands; Stacking fault energy.

Abstract

Twin boundaries (TBs) are widespread in metallic materials with special interactions with dislocations. Their fatigue cracking behaviors are distinctive from that of conventional high-angle grain boundaries. Profound understanding on the fatigue cracking mechanisms of various TBs has been achieved over past decades and is reviewed here. The dislocation slips in the matrix and twin grains determined by grain orientations are closely related to the inclinations of coherent and incoherent TBs. The variable TB-dislocation interactions generate tunable fatigue cracking behaviors of TBs. Besides the grain orientations, the stacking fault energy (SFE) also alters the piling-up of dislocations at TBs by influencing dislocation dissociation. Both factors synergistically affect the fatigue cracking behaviors of TBs with a linear relationship between the difference in Schmid factors and SFE at the threshold of TB cracking. Moreover, the TBs produced by deformation twins in face-centered cubic metals are strong to resist fatigue cracking by promoting deformation homogeneity. Yet the TBs linked with deformation twins in hexagonal-close-packed or body-centered-cubic metals are preferential sites for fatigue cracking with strain localization and stress concentration. The fundamental knowledge of TB fatigue cracking provides important guidance in interfacial design to enhance materials fatigue performance.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 37-37

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Mohamed Kalifa Andrew Starr and Muhammad Khan

School of Aerospace, Transport and Manufacturing, Cranfield University, Bedford MK43 0AL, UK.

*Corresponding author: Mohamed.kalifa@cranfield.ac.uk, a.starr@cranfield.ac.uk, muhammad.a.khan@cranfield.ac.uk

Keywords: Wear monitoring, Frictional Noise, Pin-on-Disc, Tribology, Mechanical Systems.

Abstract

Frictional noise can offer significant benefits for wear monitoring in industrial applications. It can help detect changes in friction and wear states, characterize wear stages, and monitor the wear influence on machine operations. By analysing acoustic signatures, continuous monitoring of wear characteristics and surface conditions can be achieved, aiding in predicting wear and detecting abnormal wear regimes in real-time. This study presents a novel approach to wear monitoring utilizing noise analysis in the context of sliding contact surfaces, employing a Pin-On-Disc setup. The study investigates the correlation between frictional noise and wear progression under dry and lubrication condition, different loads, and various materials furthermore, to provide valuable insights into the dynamic behaviour of sliding surfaces, therefore the findings strongly suggest a correlation between the wear rate and sound pressure.

The original version of this eBook is available on https://www.scientific.net/book/book-of-abstracts-presented-at-the-12th-international-conference-on-fracture-fatigue-and-wear-ffw-2024/978-3-0364-1471-3

Scientific Books of Abstracts, Vol. 6, pp 38-38

© 2024 The Author(s). Published by Trans Tech Publications Ltd, Switzerland.

Accepted:
2024-08-13

Online:
2024-08-30

Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Linan Tian , Long Liu and Zhengci Wang

Engineering Research Center of Failure Analysis and Safety Assessment, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, PR China

School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China

Keywords: micron inclusions, axial distribution, mechanical property, failure analysis, performance evaluation

Abstract

The anatomical analysis of a large wind power spindle found that the core of the spindle had micron inclusions, which were distributed unevenly, leading to fracture failure in the spindle. In this paper, the type and distribution characteristics of micron inclusions in a wind power spindle were analyzed, and the influence of the inclusions on mechanical properties was investigated. It was found that the chemical composition, metallographic structure and grain size of the spindle had little difference in the axial distribution, which slightly influenced the mechanical properties. Further studies showed that the inclusions were composed of inclusions, TiN inclusions and -MnS composite inclusions. The size of inclusions was mainly between , while the inclusions was above . Therefore, a 2D image recognition software was used to analyze the axial distribution of micron inclusions, and results showed that the distribution of micron inclusions varied according to the axial positions, and the number presented more in both ends than in the middle. Finally, the relationship between the micron inclusions and the mechanical properties was studied. As the increased number of the micron inclusions, the compressive strength of the spindle was increased at first and then decreased, while the elongation monotonously decreased. it's worth noting that both the and inclusion had a positive influence on the compressive strength in a lower number.

Keywords Index

#

1d Convolution Neural Networks A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

A

African Vulture Optimization Algorithm A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Artificial Neural Network A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Auxetic Honeycomb Cell Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

Axial Distribution Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

B

Bending Strength The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

C

Cable-stayed Bridge; Hot Spot Stress; Steel-uhpc Composite Deck; Residual Stress; Fatigue Assessment Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

Carbon Fibers Composite; Thermo-gravimetric Analysis; Tga/ Dsc; Peak Degradation Temperature; Mechanical Property; Water Absorption Thermal and Mechanical Property of Carbon Fiber Reinforced Composite

Compressive Residual Stress A Method for Obtaining More Stable Compressive Residual Stresses

Continuum Damage Mechanics Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Convolution Neural Networks A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Crack Initiation Life Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Crystal Plasticity Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

D

Design/manufacture The New Design of an Elevator's Door Mechanism

E

Elastic Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Elastic Dissipater Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

Elevator The New Design of an Elevator's Door Mechanism

Elevator Door Mechanism The New Design of an Elevator's Door Mechanism

Energy Absorption Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

Enhanced Termite Life Cycle Optimizer Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Expired Prepreg; Composites; Adhesives; Recycled Carbon Fiber; Reinforcement Hollow Steel Pillars Reinforcement of Living Space in the Bus Using rCF (Recycled Carbon Fibres) from Expired Prepreg from the Aircraft Industry

F

Failure Analysis Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Fatigue Strength Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Fatigue; Creep; Shakedown; Bearing Cage; Large Size Bearing; Nonlinear Viscoelasticity; Peek; Fibers Reinforced Polymer; Finite Elements; Sub-modeling Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

Fe Simulation Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Flow Forming; Metal Forming; Experimental Trials; Finite Element Method; Plasticity; Surface Roughness; Damage Numerical and Experimental Study on Two Roller Vertical Forward Flow Forming Process

Fretting Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Fretting Fatigue A Method for Obtaining More Stable Compressive Residual Stresses; Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Fretting Fatigue; Elevated Temperature; Nickel-based Alloys An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures

Fretting Fatigue; Residual Stress; Shot Peening Crack Initiation; Crack Propagation; Linear Elastic Fracture Mechanics A Numerical Study of the Effect of Residual Stress on Fretting Fatigue Behavior

Frictional Noise Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Functionally Graded Adhesive Joints; Finite Element Method; Stress Analysis Analysis of Single Lap Functionally Graded Adhesive Joints with Different Adherends

H

Heat-assist Usrp A Method for Obtaining More Stable Compressive Residual Stresses

Hydrogel Adhesion Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

Hydrogel; Fatigue; Metal Coordination Bonds; Fatigue Threshold Fatigue of Dual Crosslink Hydrogels with Metal-Ligand Coordination Bonds

I

Impact Fatigue; Three-point Bending; Failure Characteristics; Damage Mechanism Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

Ito; Epoxy Resin; Wear; Friction Coefficient; Hardness The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

M

Mechanical Property Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Mechanical Systems Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Metal-polymer Gear The New Design of an Elevator's Door Mechanism

Micron Inclusions Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Multi-directional Porous Sandwich Functionally Graded Plates; Isogeometric Analysis (iga); Sinh Cosh Optimizer (scho); Isogeometric Multimesh Design (imd); Nurbs; First Natural Frequency Design Optimization of Multi-Directional Porous Sandwich Functionally Graded Plates Reinforced with Graphene Nanoplatelets Based on Isogeometric Analysis and Sinh Cosh Optimizer

Multi-material Topology Optimization; Isogeometric Analysis; Truncated Hierarchical Bspline; Alternating Active-phase Algorithm Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

N

Negative Poisson's Ratio Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

O

Optimization Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

P

Performance Evaluation Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

Pin-on-disc Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Plastic Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Poly V-belt Drives The New Design of an Elevator's Door Mechanism

Prototype Gearbox The New Design of an Elevator's Door Mechanism

R

Real-time Damage Detection A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Residual Stress Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

S

Sandwich Nanoplates Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

Scale Coupling Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Shot Peening (sp); Finite Element Method (fem); Roughness Parameters; Contact Damage Numerical Simulation of Surface Roughness Considering Shot Peening Surface Modification Technology

Sleeve Roll Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Sleeve Slip Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Slip Damage Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Small-scale Laboratory Dam Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Stochastic Spectrum Embedding Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Structural Damage Identification Damage Identification of Complex Structures Using a Surrogate-Assisted Model; A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Structural Health Monitoring A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Structure Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

T

Titanium Alloy A Method for Obtaining More Stable Compressive Residual Stresses

Tribology Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Twin Boundary; Grain Orientations; Fatigue Cracking; Slip Bands; Stacking Fault Energy A Review on the Fatigue Cracking of Twin Boundaries: Crystallographic Orientation and Stacking Fault Energy

V

Vibration Response Damage Identification of Complex Structures Using a Surrogate-Assisted Model

W

Wear Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

Wear Monitoring Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Wire; Corrosion Time; Fretting Wear; Wear Morphology; Damage Surface Mechanical Behavior Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires

Work Roll Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

Authors Index

A

Abenojar, J. The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

Ahmed, B. An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures

B

Bai, C. Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

Bai, J. Design Optimization of Multi-Directional Porous Sandwich Functionally Graded Plates Reinforced with Graphene Nanoplatelets Based on Isogeometric Analysis and Sinh Cosh Optimizer

Bao-Lam, N. A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Boehm, M. Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

C

Cao, M. Damage Identification of Complex Structures Using a Surrogate-Assisted Model

D

Dop, G. Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

F

Fan, K. A Method for Obtaining More Stable Compressive Residual Stresses

G

Gao, L. Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

H

Hamid, U. Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption

I

Imran, M. Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models

J

Jiang, X. Improve Hydrogel Adhesion by Introducing Pillar Structures at the Interface

K

Kadin, Y. Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

Kalifa, M. Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Khan, M. Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

Kocabıçak, A. Numerical and Experimental Study on Two Roller Vertical Forward Flow Forming Process

Kort, G. Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

L

Li, C. Numerical Simulation of Surface Roughness Considering Shot Peening Surface Modification Technology

Li, L. A Review on the Fatigue Cracking of Twin Boundaries: Crystallographic Orientation and Stacking Fault Energy

Li, X. Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

Li, Y. Damage Identification of Complex Structures Using a Surrogate-Assisted Model

Liu, D. A Method for Obtaining More Stable Compressive Residual Stresses

Liu, L. Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

M

Martinez, M. Reinforcement of Living Space in the Bus Using rCF (Recycled Carbon Fibres) from Expired Prepreg from the Aircraft Industry; The Effect of Indium Tin Oxide (ITO) Concentration on the Wear and Mechanical Properties of an Epoxy Resin

Mirzayev, H. The New Design of an Elevator's Door Mechanism

N

Nguyen, N. A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Noda, N. Study on Sleeve Slip Mechanism and Slip Damage through Load Shifting Simulation and Miniature Roll Experiment for Development of Next-Generation Sleeve Assembly Type Rolls

P

Peng, Y. Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires

Q

Qin, S. Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

S

Schaake, R. Modeling of Fatigue/Creep in Polymer Cage of Large Size Bearing

Shirazi, M. A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs

Starr, A. Analysing Frictional Noise for Wear Monitoring under Dry and Lubrication Condition: Experimental Modelling with Pin-On-Disc Tribometer

T

Thanh, B. A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks

Tian, L. Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

W

Wahab, M. A Numerical Study of the Effect of Residual Stress on Fretting Fatigue Behavior; An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures; Numerical and Experimental Study on Two Roller Vertical Forward Flow Forming Process; Finite Element Analysis of Fretting Wear of Steel Wires: A Comparison of Elastic and Plastic Wear Models; A Review on Assessing Structural Health Monitoring of Composite Structures Using Regression in CNNs; Damage Identification of Complex Structures Using a Surrogate-Assisted Model; Optimization of Auxetic Honeycomb Cell Parameters for High Energy Absorption; Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires; A Method for Obtaining More Stable Compressive Residual Stresses; Design Optimization of Multi-Directional Porous Sandwich Functionally Graded Plates Reinforced with Graphene Nanoplatelets Based on Isogeometric Analysis and Sinh Cosh Optimizer; Numerical Simulation of Surface Roughness Considering Shot Peening Surface Modification Technology; A Hybrid Approach For Structure Damage Identification Using Optimization Algorithm and Artificial Neural Networks; Analysis of Single Lap Functionally Graded Adhesive Joints with Different Adherends

Wang, B. Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

Wang, C. A Numerical Study of the Effect of Residual Stress on Fretting Fatigue Behavior; An Overview of Recent Research on Fretting Fatigue Behavior of Ni-Based Super Alloys at Elevated Temperatures; A Method for Obtaining More Stable Compressive Residual Stresses

Wang, G. Effect of Corrosion on Fretting Wear Morphology and Mechanical Behaviors of Wires

Wang, S. Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

Wang, Z. Investigation on the Axial Distribution of Micron Inclusions and their Influence on Mechanical Properties in a Wind Power Spindle

X

Xie, X. Adaptive Isogeometric Multi-Material Topology Optimization Based On Suitably Graded Truncated Hierarchical B-Spline

Xu, Y. Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Y

Yang, Q. Evolution Mechanism of Three-Point Bending Impact Fatigue Damage in Ultra-high Strength Steel 23Co14Ni12Cr3MoE Material

Yuan, F. Continuum Damage Driven by Accumulated Crystal Plasticity Energy Dissipation Two-Scale Model for Fretting Fatigue Initiation Life

Z

Zhang, J. Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

Zhang, Y. Analysis of Single Lap Functionally Graded Adhesive Joints with Different Adherends

Zheng, Y. Fatigue of Dual Crosslink Hydrogels with Metal-Ligand Coordination Bonds

Zhong, A. Fatigue Performance Assessment of Steel-UHPC Composite Deck Based on Hot Spot Stress Method Considering Residual Stress

Ş

Şahin, Y. The New Design of an Elevator's Door Mechanism; Thermal and Mechanical Property of Carbon Fiber Reinforced Composite