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There are various methods for measuring the fatigue performance of materials, such as single point method, small sample lifting method, large sample lifting method, group lifting method, step lifting method, etc.
[5] Ting Yan, Haibo Zhou, Hang Deng, Research on fatigue resistance optimization design of embedded blade root connecting bolts for wind turbine blades, Composite Materials Science and Engineering, Commun. 01(2021) 102-106
[13] Yukun Bao, Jinsuo Ma, Meng Wu and Jiacheng Xie, ed, Optimization of heat treatment process for bolt steel resistant to marine atmospheric corrosion, Transactions of Materials and Heat Treatment, Commun. 04(2021) 96-101
[18] Chaofeng Peng, Hongliang Wang, Xianzhao Zhang, Failure analysis of high-strength bolt fracture in wind turbine blade connection, Metal Materials and Metallurgy Engineering. 03(2023) 33-36
[20] Jing Zhang, Yahui Meng, Failure analysis of high-strength bolt fracture in wind turbine blade connection, Metal Materials and Metallurgy Engineering. 06(2022) 21-26.

Introduction Magnetic iron oxide (MIO) – conducting polyaniline (PANI) composites were potential materials with dual properties.
Materials and Method Aniline (LR grade) was purchased from Loba chemie .
References [1] Luiza de Castro Folgueras, Mirabel Cerqueira Rezende, Microwave Absorbing Nanocomposites Composed with and without Polyaniline by Use as Radar Absorbing Structure , Material Science Forum , 730 (2012 )920-924
Chen, Preparation and characterization of core-shell polyaniline- polystyrene sulfonate@Fe3O4 nanoparticles, Materials Chemistry and Physics, 112 (2008) 805-809
Chen, A simple synthesis of Fe3O4 nanoclusters and their electromagnetic nanocomposites with polyaniline, Materials Chemistry and Physics, 122 (2010) 588-594

Nonlinear analysis of transmission tower structure by three FEM models Wei Yi1,a, Xiaohu Liu1,b 1Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074 aYiwei_hust@qq.com, bxhliu@mail.hust.edu.cn Keywords: transmission tower structure; full-scale test; Non-linear finite element analysis Abstract: In this paper, three kinds of FEM models, i.e., the truss element model, the beam element model and the mixed beam-solid element model are utilized to simulate the full-scale field test of transmission tower.
Based on Abaqus software, the geometric and material nonlinearity of the structure is considered.
Transmission tower is usually assumed as a space truss structure, all the connections are hinged, the deformation is small, and material is linear elastic.
Back in the 1970s, geometric and material nonlinearity FEM was proposed to solve the response of steel structures [1], and lots of research work have been done on this issue since then [2-5].
Journal of Constructional Steel Research [J].

Savelsbergh, The stochastic inventory routing problem with direct deliveries, Transportation Science. 36 (2002) 94–118
Desrosiers, A Branch-and-Price Method for a Liquefied Natural Gas Inventory Routing Problem, Transportation Science. 44 (2010) 400–415
Pacheco, Optimizing the periodic pick-up of raw materials for a manufacturer of auto parts, European Journal of Operational Research. 179 (2007) 736–746
Speranza, A Branch-and-Cut Algorithm for a Vendor-Managed Inventory-Routing Problem, Transportation Science. 41 (2007) 382–391
SIAM Journal on Computing, v. 6, n. 3, p. 563 - 581, 1977

Analysis on Function Components and Biohealth Function of Phyllostachys heterocycla Biomass MA Qing-zhia , WU Feng-juan, ZHANG Dang-quan, PENG Wan-xi School of Materials Science and Engineering,Central South University of Forestry and Technology, City Changsha, P.R.
Materials and Methods Materials and Methods.
The sample chips were processed from fresh material.
Gang, X .Kaishao, Journal of Bamboo and Research Vol.23(2004), p.5 [6] Li Baotong.
Journal of Plant Protection Vol.30(2003), p.166-170

Introduction Increasing environmental concern has pushed the development of sustainable, eco-friendly, and biodegradable materials [1].
New techniques in nanotechnology have been developed to investigate and strategize a material for multiple applications in various and allied fields of science.
One of the excellent raw materials for extraction of crystals is the Eichhornia crassipes, locally known as water hyacinth, since it has high percentage of cellulose, (60%) compared to other lignocellulosic composition, which contains 8% hemicellulose and 17% lignin [10].
Sanchez, Nanocellulose, a Versatile Green Platform: from Biosources to Materials and their applications, Chem.
Kim, XRD and FTIR Studies of Nanocrystalline Cellulose from Water Hyacinth (Eichhornia crassipes) Fiber, Journal of Metastable and Nanocrystalline Materials, Vol. 29 (2017) 9-16

Effect of substrate temperature on the haze and properties of SnO2: F thin film coated on glass (FTO) by spray pyrolysis process Qingnan Zhao, Shuo Wu*, Dengkui Miao (Key Laboratory Of Silicate Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Hongshan District, Wuhan, Hubei, 430070, PR China) Corresponding author,Tel:+86 27 87669729 E-mail addresses:wushuo.phyche@hotmail.com(SH,WU), zhaoqingnan@tom.com(Q.Zhao) ABSTRACT: The textured thin films of fluorine-doped tin oxide (FTO) were prepared onto preheated glass substrates by a spray pyrolysis technique, using dehydrate stannous chloride (SnCl2:2H2O) and ammonium fluoride (NH4F) mixed with alcohol, as precursor.
Sheet resistance is an important parameter in comparing thin films, particularly those of the same material deposited under similar conditions.
Acknowledgements The author is gratefully acknowledged to department of the Center for Materials Research & Analysis of Wuhan University of Technology for XRD and AFM images and the State Key Laboratory of Advanced Technology for material synthesis and processing for the Morphology images.
Journal of Sol-Gel Science and Technology, 2003, 28: 105-110
Journal of functional material and devices,2005,11（2）：202 [23] Shanthi E, Dutta V, Banerjee A, et al.

The analytical methods are limited to simple geometries, linear materials and simple load cases.
In the experimental methods, the accuracy and the precision of measurement is a special branch of science.
Measured values Some materials properties of water and the steel sheet (the front wall), which were used in the numerical analysis, are presented in Table 1 and Table 2.
Harapin, Shake table testing of an open rectangular water tank with water sloshing, Journal of Fluids and Structures. 81 (2018) 97–115
Dalrymple, Boundary Conditions Generated by Dynamic Particles in SPH Methods, Tech Science Press. 5(3) (2007) 173-184

Precision control calculation method and forming technology of aluminum alloy base LI Guo-Jun1, a, REN Jin-Ru2,b ,ZHANG Zhi-Min3,c 1,3College of Materials Science & Engineering, North University of China,Taiyuan 030051 China 2Shanxi Pingyang Heavy Industry Machine Co., LTD.
The raw material was prepared in the same volume and the materials flow into the hole through the flow channel in three state stresses.
The radial and tangential stress is much lager than the axial stress, so the materials and mould will have a good fit in the backward flow.
The materials on both sides of the edges on the stage aggregate to the edges, which formed the large rounded corners and sharp edges.
[2] SHAN D B, XU W C, LU Y: Journal of Materials Processing Technology, Vol.151 (2004), p.289-293

Boundary Conditions Constraints, material specifications and gravity effects were considered.
Some physical and materials properties are shown in tables 1 and 2.
Groover, Fundamentals of Modern Manufacturing, Materials, Processes and Systems., 4th, Ed., Danvers: John Wiley & Sons, Inc., 2010, pp. 507-512
Unsacar, "Design, Development and Testing of a Turning Dynamometer for Cutting Force Measurement," Materials and Design, vol. 27, no. 10, pp. 839-846, 2006
Rao, "Design and fabrication of dynamometer to measure radial component of cutting force and experimental investigation of optimum burnishing force in roller burnishing process," Indian Journal of Science and Technology, vol. 3, no. 7, pp. 737-742, 2010.