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Online since: July 2020
Authors: Chang Lin Wang, Shuren Jiang, Bao Cun Li, Shuai Li
Research on Mechanical Properties of a New Fabricated Wall Material in Building with Light Steel Structure
Changlin Wang*, Shuren Jiang, Baocun Li, Shuai Li
The First Company of China Eighth Engineering Division Ltd, Jinan 250220, China
*Corresponding author e-mail:chilamwang@126.com
Keywords: fabricated, wall material, light steel structure, construction, mechanical properties.
The results of various indexes show that this new wall material structure has a safe and reliable structural composition and excellent mechanical properties, and the material forms and material quality can be customized, it enriches the application design range of building material architecture and is worth promoting.
Mechanical Performance Analysis of Key Nodes The connection and joint nodes between the frame steel beam and the frame column of the fabricated thermal insulation decorative wall unit are the key nodes that need to be researched in this project.
Fig.15. 3D diagram of key nodes Fig.16.
[8] "SAP2000 Technical Guide and Engineering Application", ISBN978-7-114-14575, Beijing Zhuxinda Engineering Consulting Co., Ltd., People's Communications Press.
The results of various indexes show that this new wall material structure has a safe and reliable structural composition and excellent mechanical properties, and the material forms and material quality can be customized, it enriches the application design range of building material architecture and is worth promoting.
Mechanical Performance Analysis of Key Nodes The connection and joint nodes between the frame steel beam and the frame column of the fabricated thermal insulation decorative wall unit are the key nodes that need to be researched in this project.
Fig.15. 3D diagram of key nodes Fig.16.
[8] "SAP2000 Technical Guide and Engineering Application", ISBN978-7-114-14575, Beijing Zhuxinda Engineering Consulting Co., Ltd., People's Communications Press.
Online since: January 2016
Authors: Wan Hua Zhao, Jun Zhang, Yong He, Yi Fei Jiang, Hong Guang Liu
Discrete element simulation of machining cracks in brittle materials during high speed cutting
Yong He1,2,a, Jun Zhang1,2,b *, Yifei Jiang1,2,c Hongguang Liu1,2,d, Wanhua Zhao1,2,e *
1School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, China;
2State Key Laboratory for Manufacturing Systems Engineering, Xi’an, China;
ahyscdx@163.com, bjunzhang@mail.xjtu.edu.cn, cjiangyifei228@gmail.com dlhg.342723778@stu.xjtu.edu.cn, ewhzhao@mail.xjtu.edu.cn
Keywords: Brittle materials; High speed cutting; Cracks; Stress wave; Discrete element method
Abstract.
The dynamic process of cracks initiation in brittle materials during high speed cutting is primary for the analysis of material fracture mode and finished surface.
Furthermore, the stress state of particles’ connectors under the action of stress wave was analysed, which suggests that the stress wave is the key factor causing cracks initiation of brittle materials during high speed cutting.
Therefore, a further study on cracks initiation process of brittle materials during HSM is greatly significant.
It was found that the reason for cracks initiation during high speed cutting differs from conventional speed and stress wave is the key factor causing cracks initiation of brittle materials during high speed cutting.
The dynamic process of cracks initiation in brittle materials during high speed cutting is primary for the analysis of material fracture mode and finished surface.
Furthermore, the stress state of particles’ connectors under the action of stress wave was analysed, which suggests that the stress wave is the key factor causing cracks initiation of brittle materials during high speed cutting.
Therefore, a further study on cracks initiation process of brittle materials during HSM is greatly significant.
It was found that the reason for cracks initiation during high speed cutting differs from conventional speed and stress wave is the key factor causing cracks initiation of brittle materials during high speed cutting.
Online since: December 2012
Authors: Li Ren Yang
However, there are attempts to generalize the concept of maturity beyond the domain of software engineering [12].
The manufacturing process also needs to involve reliable delivery of products and materials.
Anderson, Maturity and its impact on new product development project performance, Research in Engineering Design. 13 (2001) 23-29
Pierson, A Description of the Systems Engineering Capability Maturity Model Appraisal Method Version 1.1, CMU/SEI-96-HB-004, Carnegie Mellon Software Engineering Institute, Pittsburgh, Pennsylvania, 1996
McCaffer, Project procurement system selection model, Journal of Construction Engineering and Management. 126 (2000) 176-184
The manufacturing process also needs to involve reliable delivery of products and materials.
Anderson, Maturity and its impact on new product development project performance, Research in Engineering Design. 13 (2001) 23-29
Pierson, A Description of the Systems Engineering Capability Maturity Model Appraisal Method Version 1.1, CMU/SEI-96-HB-004, Carnegie Mellon Software Engineering Institute, Pittsburgh, Pennsylvania, 1996
McCaffer, Project procurement system selection model, Journal of Construction Engineering and Management. 126 (2000) 176-184
Online since: August 2007
Authors: Alexander Chudnovsky
The process zone (PZ) that surrounds and precedes a crack is a common feature of fracture
in engineering polymers.
Crack Layer Concept The studies of crack growth and stability in engineering plastics have been conducted from a continuum mechanics as well as a materials science perspective.
A process zone (PZ) (also called damage zone or plastic deformation zone) is commonly observed around the cracks in engineering plastics.
The superscripts "0" and "tr" indicate the original and transformed materials.
Chudnovsky: submitted to Key Engineering Materials (2007).
Crack Layer Concept The studies of crack growth and stability in engineering plastics have been conducted from a continuum mechanics as well as a materials science perspective.
A process zone (PZ) (also called damage zone or plastic deformation zone) is commonly observed around the cracks in engineering plastics.
The superscripts "0" and "tr" indicate the original and transformed materials.
Chudnovsky: submitted to Key Engineering Materials (2007).
Online since: October 2010
Authors: Lian Hong Zhang, Ya Hui Hu, Shu Xin Wang
Optimal Design Methods of Mechanical Product Driven by Key
Performance of System
HU Yahui1, 2, a, ZHANG Lianhong1, b and WANG Shuxin1, c
1
School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
2
Tianjin Key Laboratory for Control Theory & Applications in Complicated Systems,
Tianjin University of Technology, Tianjin 300384, China
a
fwhhyh@yahoo.cn, b
zhanglh@tju.edu.cn, c shuxinw@tju.edu.cn
Keywords: Performance model, optimal procedure, hydraulic pressure machine
Abstract: This paper studied system level optimal design methods of product using the theories of
performance requirement-driven.
However, optimization design driven by performance makes performance feature became a key element in controlling whole optimization procedure.
Secondly, Identify the key factor that influence product performance, extract the key performance as optimum objective function and finish the mapping from function to structure in the processes.
Quantize quality Performance model Performance model Sub-funtion F1 … Sub-funtion F1j Sub-funtion F11 … units of measure S 1j Funtion parameter P1j units of measure Si Funtion parameter P i quantize standards V1j quantize standards Vi Sub-funtion Fi … optimized process driven by performance Mapping from Performance to Structure key part 1 key part 2 key part m ...
NSC50805101 References [1] Dai Xu-dong and Xie You-bai: Computer Engeneering and Applications (2003) No.39 p43 [2] Yung-Chou Kao, Hsin-Yu Cheng and Chen-Hua She: Journal of Materials Processing Technology (2006), p.98 [3] Ho-Jun Lee, Jae-Woo Lee and Jeong-Oog Lee: Advances in Engineering Software, Vol.40 (2009), p.176 [4] Jiaqing Yu, Jianzhong Ch and Yiping Lu: Advances in Engineering Software, Vol.41 (2010) p.590
However, optimization design driven by performance makes performance feature became a key element in controlling whole optimization procedure.
Secondly, Identify the key factor that influence product performance, extract the key performance as optimum objective function and finish the mapping from function to structure in the processes.
Quantize quality Performance model Performance model Sub-funtion F1 … Sub-funtion F1j Sub-funtion F11 … units of measure S 1j Funtion parameter P1j units of measure Si Funtion parameter P i quantize standards V1j quantize standards Vi Sub-funtion Fi … optimized process driven by performance Mapping from Performance to Structure key part 1 key part 2 key part m ...
NSC50805101 References [1] Dai Xu-dong and Xie You-bai: Computer Engeneering and Applications (2003) No.39 p43 [2] Yung-Chou Kao, Hsin-Yu Cheng and Chen-Hua She: Journal of Materials Processing Technology (2006), p.98 [3] Ho-Jun Lee, Jae-Woo Lee and Jeong-Oog Lee: Advances in Engineering Software, Vol.40 (2009), p.176 [4] Jiaqing Yu, Jianzhong Ch and Yiping Lu: Advances in Engineering Software, Vol.41 (2010) p.590
Online since: August 2013
Edited by: Erasmo Carrera, Maria Cinefra, Federico Miglioretti, Marco Petrolo
Smart materials and structures is an area of technology which has been around for approximately 30 years or more where materials and structures are augmented by sensing and actuation functionality, and those functions are combined with control elements, all becoming an integral part of the materials and structures considered.
This book collects selected Plenary Lectures and Key-Note Lectures from the VI Eccomas Thematic Conference on Smart Structures and Materials (SMART’13), June 24-26, 2013, Torino, Italy.
Online since: August 2013
Authors: Lei Song, Bin Li, Zhuo Yi Yang, Xiao Meng Zhu
Strength Analysis of Composite Material Underwater Vehicle
Bin LI 1, a, Zhuoyi YANG 2,b , Xiaomeng ZHU 3,c and Lei SONG 4,d
1Harbin Engineering University National Key Laboratory of Science and Technology on Autonomous Underwater Vehicle, Harbin, Heilongjiang, 150001, China
2Harbin Engineering University National Key Laboratory of Science and Technology on Autonomous Underwater Vehicle, Harbin, Heilongjiang, 150001, China
3Harbin Engineering University Deepwater Engineering Research Center, Harbin, Heilongjiang, 150001, China
4Harbin Engineering University National Key Laboratory of Science and Technology on Autonomous Underwater Vehicle, Harbin, Heilongjiang, 150001, China
aLb-bin@163.com, byangzhuoyi@hrbeu.edu.cn, cgavinzhu@126.com, dsonglei2962@yahoo.com.cn
Keywords: underwater vehicle, carbon fiber, composite materials, strength analysis.
As a result of the anisotropy of composite material structure, under the action of forces, they show complex effects.So accurate structural deformation analysis for composite materials has the very vital significance.
Composite materials are materials made from two or more constituent materials with significantly different physical or chemical properties[3], that when combined, produce a material with characteristics different from single component.
This is not the same as in the practical engineering, and the biggest stress value in engineering is smaller than that in the finite element model.
[7] Jinxin Xie: Structural Optimization Design of Underwater Vehicle Based on Parametric Finite Element, chapter 5, Harbin Engineering University (2010) , In Chinese.
As a result of the anisotropy of composite material structure, under the action of forces, they show complex effects.So accurate structural deformation analysis for composite materials has the very vital significance.
Composite materials are materials made from two or more constituent materials with significantly different physical or chemical properties[3], that when combined, produce a material with characteristics different from single component.
This is not the same as in the practical engineering, and the biggest stress value in engineering is smaller than that in the finite element model.
[7] Jinxin Xie: Structural Optimization Design of Underwater Vehicle Based on Parametric Finite Element, chapter 5, Harbin Engineering University (2010) , In Chinese.
Online since: July 2011
Authors: Zhi Huang, Yun Huang, Hai Long Wu, G.J. Cheng
China;
2Chongqing Engineering Research Center for Material Surface Precision Machining and Whole Set Equipments, Nanqiaosi 16, Jiangbei District, Chongqing, 400021, P.R.
Blades are the key parts of the turbine, which usually use materials such as 1Cr13 stainless steel.
Thus, belt grinding has its unique advantages on the processing of these hard to grind materials.
Liu: Advances in Materials Manufacturing Science and Technology Vol. 626-627(2009), pp: 617-622
Sun: Key Engineering Materials Vol. 202-203(2001), pp: 53-56
Blades are the key parts of the turbine, which usually use materials such as 1Cr13 stainless steel.
Thus, belt grinding has its unique advantages on the processing of these hard to grind materials.
Liu: Advances in Materials Manufacturing Science and Technology Vol. 626-627(2009), pp: 617-622
Sun: Key Engineering Materials Vol. 202-203(2001), pp: 53-56
Online since: August 2013
Authors: Cai Lian Hao, Deng Hua Yan, Wei Hua Xiao, Jun Yin
Research Framework & Key Issues for Non-Point Source Pollution in Agriculture Induced by Water-Loss and Soil-Erosion
Cailian Hao1,2,a, Denghua Yan2,b, Weihua Xiao2,c and Jun Yin2,d
1 Environmental Science and Engineering Department, Donghua University, Shanghai, P R China, 201620
2 Water Resources Department, China Institute of Water Resources and Hydropower Research, Beijing, P R China, 100038
ahaocailian123@163.com, byandh@iwhr.com, cxiaoweihua@iwhr.com, dyinjunhuangshang@126.com
Keywords: water-loss and soil-erosion, non-point source pollution in agriculture, water-loss and soil-erosion dominated non-point source pollution in agriculture, technical framework, and key issues.
Water and soil resources are important material basis, upon which human subsistence and development are relying.
Finally key issues such as load module construction for semi-distributed non-point source pollution which based upon component structure, theory and method for total quantity control, and charting the sets of solutions and countermeasures were discussed.
Technical framework for research on Water-loss and Soil-erosion Dominated Non-point Source Pollution in Agriculture Technical framework for research on water-loss-and-soil-erosion dominated non-point source pollution in agriculture shall cover three different layers: outfit of fundamental information, mechanism identification and evaluation, scheme setting and working out the countermeasures, and with details as followed(Fig. 3): Layer for outfit of fundamental information: the way of taking regional meteorological data, soil data, hydrologic data, water quality data and some graphic materials as working database would facilitate the operation and validation to the simulation platform for regional non-point source pollution in agriculture.
Theory of Conservancy of Water and Soil, water conservancy and electric power press, Beijing. (1992) [34] Ascough II J C, Baffaut C and Nearing M A: submitted to Journal of ASAE (1997) [35] Xuetao Hu, Jining Chen: submitted to Journal of Environmental Science (2002) (in Chinese) [36] Leon P, Georges Z: submitted to Journal of Economic Dynamics control (2003) [37] Ruzhong Li, Jiaquan Wang and Jiazhong Qian: submitted to Journal of Harbin industrial university journal (2005) (in Chinese) [38] Hongfei Guo, Jinren Ni and Yudong Wang: submitted to Journal of Application Basis and Engineering Science Journal (2003) (in Chinese) [39] Kangping Hu, Zhencheng Xu: submitted to Journal of China Environmental Science (1991) (in Chinese) [40] Bingwen Li, Guozhen Jia: submitted to Journal of Northeast Water Conservancy and Hydropower (2000) (in Chinese) [41] Zhanpo Mao, Huai’en Li: submitted to Journal of Northwest Water Resources and Water Engineering (1999) (in Chinese) [42] Yukai Huang:
Water and soil resources are important material basis, upon which human subsistence and development are relying.
Finally key issues such as load module construction for semi-distributed non-point source pollution which based upon component structure, theory and method for total quantity control, and charting the sets of solutions and countermeasures were discussed.
Technical framework for research on Water-loss and Soil-erosion Dominated Non-point Source Pollution in Agriculture Technical framework for research on water-loss-and-soil-erosion dominated non-point source pollution in agriculture shall cover three different layers: outfit of fundamental information, mechanism identification and evaluation, scheme setting and working out the countermeasures, and with details as followed(Fig. 3): Layer for outfit of fundamental information: the way of taking regional meteorological data, soil data, hydrologic data, water quality data and some graphic materials as working database would facilitate the operation and validation to the simulation platform for regional non-point source pollution in agriculture.
Theory of Conservancy of Water and Soil, water conservancy and electric power press, Beijing. (1992) [34] Ascough II J C, Baffaut C and Nearing M A: submitted to Journal of ASAE (1997) [35] Xuetao Hu, Jining Chen: submitted to Journal of Environmental Science (2002) (in Chinese) [36] Leon P, Georges Z: submitted to Journal of Economic Dynamics control (2003) [37] Ruzhong Li, Jiaquan Wang and Jiazhong Qian: submitted to Journal of Harbin industrial university journal (2005) (in Chinese) [38] Hongfei Guo, Jinren Ni and Yudong Wang: submitted to Journal of Application Basis and Engineering Science Journal (2003) (in Chinese) [39] Kangping Hu, Zhencheng Xu: submitted to Journal of China Environmental Science (1991) (in Chinese) [40] Bingwen Li, Guozhen Jia: submitted to Journal of Northeast Water Conservancy and Hydropower (2000) (in Chinese) [41] Zhanpo Mao, Huai’en Li: submitted to Journal of Northwest Water Resources and Water Engineering (1999) (in Chinese) [42] Yukai Huang:
Online since: February 2019
Authors: Leonid Levkov, Dmitry Shurygin, Mikhail Kisselman
JSC “RPA “CNIITMASH” continuously developed ways to use ESR to manufacture critically important parts for power engineering, including nuclear power engineering, heavy-duty machine engineering and other machine building industries.
For several years JSC “RPA “CNIITMASH” developed ways to apply ESR to procure critically important parts for power engineering (including nuclear power industry), heavy-duty machine building and other engineering industries.
Alipatov, Special Electrometallurgy in Power and Heavy Engineering, J.
Holzgruber, Influence of the Frequency of the Applied AC Current on the Electroslag Remelting Process, in: CFD Modeling and Simulation in Materials Proc., (2012) 139-148
Heavy engineering, 7 (2012) 28-34
For several years JSC “RPA “CNIITMASH” developed ways to apply ESR to procure critically important parts for power engineering (including nuclear power industry), heavy-duty machine building and other engineering industries.
Alipatov, Special Electrometallurgy in Power and Heavy Engineering, J.
Holzgruber, Influence of the Frequency of the Applied AC Current on the Electroslag Remelting Process, in: CFD Modeling and Simulation in Materials Proc., (2012) 139-148
Heavy engineering, 7 (2012) 28-34