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China, 64300 2Sichuan University of Science & Engineering, Zigong, P.R.
In the cycle of loading, materials have cyclic hardening or softening and steady-state hysteresis loop, is different from monotone σ-ε curve.
In variety of statistical notation, the rain flow counting method is widely used in fatigue strength in the international; it is considered the most fatigue damage of materials laws.
Material S-N curves: The materials of the structural is 20MnMo, simplified S-N curve, which is the ultimate strength and elastic modulus generation, the ultimate strength of the material is 530MPa.
An example of the use of neural computing techniques in materials science - the modeling of fatigue thresholds in Ni-base super alloys[J].Materials Science and English, 1999, A260 :222 - 239

Determining the anisotropy coefficients of an ultra fine grained Al6082 alloy subjected to ECAP Gyorgy Krallics1, a , Arpad Fodor2,b 1,2 Department of Material Science and Engineering Budapest University of Technology and Economics, 1111 Budapest, Bertalan L. u. 7.
While this theory shows a good correspondence to experimental results in sheet forming technologies for mild steels, it has a lot of limitations to describe some other materials.
For instance one of such application is the equal channel angular pressing for manufacturing nanostructured bulk materials.
Chenot, Journals of Materials Processing Technology 27 (1991) 119-133 [6] O.
Langseth, International Journal of Plasticity 15 (1999) 194 [7] Han-Chin Wu, International Journal of Plasticity 18 (2002) 1661-1682

The present study shows that the minor addition of rare earth affected the properties of aluminum alloy in various ways.On the one hand,it can refine grains, plays the role of fine-grain strengthening,that can improve the strength of materials but not reduce the ductility of materials[7].On the other hand,it can improve the electrical conductivity of aluminum alloy[8].
Rare Metal Materials And Engineering,2010 [2] Zou Liang, Pan Qing-lin, He Yun-bin,Wang Chang-zhen,,Liang Wen-jie.Effect of Minor Sc and Zr Addition on Microstructures and Mechanical Properties of Al-Zn-Mg-Cu Alloys[J].
Journal of Alloys and Compounds,2011 [4] Yang Junjun,Nie Zuoren,Fu Jingbo,Zuo Tieyong.Effect of Rare Earths on Aluminum Alloys and Its Research[J].Journal of Beijing Polytechnic University,2002 [5] Zhao Ping, Chen Yungui,Tang Dingxiang,Tu Mingjing.
Chinese Rare Earths,2002 [6] Hu Gengxiang,Cai Xun.Foundation of Material Science[M].
Metallic Functional Materials,2010

Because Solid65 element was designed for concrete, rocks and other non-uniform materials whose compressive strength are higher than tensile strength.
Solid65 element can define 3 different reinforced materials at most, it have four different materials at the same time.
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Introduction In resent years, the calculation software of the first-principles Density-functional theory (DFT) is widely used in materials science research [1-4].
And we use Materials Studio 4.4.
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[3] HE Qin-bin, CHEN Fang-yue，CAI Shui-ming etc,in: An efficient range-free localization algorithm for wireless sensor networks.Science China Technological Sciences.2011, 54(5):1053-1060
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Applied Science, Materials Science and Information Technologies in Industry Applied Mechanics and Materials, 2014(513-517):3496-349.

In most cases the information on the materials are provided in references and specialized catalogs.
For some types of rolling the materials properties should be identified in each specific case.
Such research was not conducted for alloyed materials.
Mishin, Sample for mechanical testing of materials by plastic uniaxial upsetting, Chernye Metally. 8 (2019) 62-66
Walter-Leberre, Failure analysis of anisotropic sheet-metals using a non-local plastic damage model, Journal of Materials Processing Technology. (2005) 457-470

The material constitutive model.
The reinforcement material is simulated by using bilinear model[10].
Acknowledgements This work was financially supported by the Shandong Province High School Science & Technology Planning Project (J09LE02), and the corresponding author of this article is Haitao Fan.
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Carbon Fiber Reinforced Plastic (CFRP) are being considered for use in the field of civil infrastructure as strengthening and rehabilitation materials because of the characteristics of high strength, high stiffness, light-weight, excellent corrosion resistance, ease and speed of installation, etc.
CFRP material adopts UDO CFPR produced by Germany EPO Co., Ltd..
:Journal of Composites for Construction, Vol. 8(2) (2004), p. 132-140
[5] Suyan Wang and Lei Liu: Journal of Shenyang Jianzhu University (Natural science edition) , Vol. 24 (4) (2008), p. 562-566.
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Therefore, the plastic material selects polyamide (PA66 Ultramid A3K: BASF), and the material properties are shown in Tab.1.
Park: International Journal of Automotive Technology, Vol.10, (2009), p.87
ZHAO: Applied Mechanics and Materials, Vol. 29-32 (2010), p.646
Li: International Journal of Advanced Manufacturing Technology, Vol.48, (2010), p.505
Xie: Journal of Central South University of technology, Vol.16 (2009), p.774.