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The material chose for study is Low carbon steel alloy 16Mn, with modulus of elasticity E of 2.06×105 MPa, Poisson’s ratio m of 0.3,yield strength ss of 345 MPa.
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The journal of Hubei Institute of Technology,2000, 15(1), p. 6-8
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Journal of mechanical strength,2003,25(6),p.632-636

The dynamic mechanical thermal analyzer (DMTA)provides an excellent means to determine the viscoelastic properties of materials.
Dynamic Mechanical Properties We performed a dynamic mechanical analysis on EPE propellant materials, in order to study the viscoelastic response at low strains.
Journal of applied polymer science, 2005, 97(6): 2221-2229
Journal of Non-Crystalline Solids, 2009, 355(34): 1755-1759
Materials Science and Engineering: A, 2009, 513: 216-221.

There are seven virgin SLS materials which are PA2200, GF3200, Alumide, PrimeCast, PrimePart, Duraflex and CastForm.
The spectra show that similar functional groups were found in the materials apart from PrimePart and Duraflex.
This is due to the wide range of materials that can be processed through SLS.
These materials include metals, polymers and ceramics.
[2] PK Jain, K Senthilkumaran, PM Pandey, PVM Rao, (2006) Advances in materials for powder based rapid prototyping, Proceeding of International Conference on Recent Advances in Materials and Processing

The strip model adopt double linear materials.The materials of backup roll body and work roll neck were defined as rigid body to save calculation time.
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[5] Jang-Ping Wang, Wei-Chen Kao, Hsien-Der Lee, James Wang.Analysis of 3D rolling forming with generalized rigid-plastic boundaries approach[J].journal of materials processing technology.2008, 204 (2008):425–433

Acknowledgment This paper is supported by National Natural Science Foundation of P.R.
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Introduction There is currently considerable interest in replacing heavier steel bodies with lighter materials such as aluminum alloys for automobile applications.
Experimental Materials and Procedure Aluminum alloy AA 6061 sheets of 1mm thickness were chosen for this study.
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Materials preparation and process methods are discussed in the following subsections.
Materials Preparation.
All materials used in this work are economically available and are of highest purity.
Journal of Nanomaterials, 2012. 2012: p. 121
Materials Science in Semiconductor Processing, 2014. 24: p. 272-277

Also, on the basis of the industrial energy saving standards and rules of the country and other areas,the standards should include several influencing factors: technology, equipment, raw materials, etc.
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Material Science and Engineering.
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Conditions for Balancing Evaporative Pattern-Refractory Coating-Liquid Metal-Sand System, Metalurgija-Journal of Metallurgy. 13(2): 139-146
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Analysis of Natural Frequency of Simply Supported Beam with Vertical Elastic Constraint Bo Geng1,a, Miao Hu1,b, Qichen Wang2,c, Jinzhou Lin1,d and Dianpeng Li1,e 1School of Mechanical Engineering, Tianjin University, Tianjin, China 2School of Engineering and Applied Science, Miami University, Oxford, America achinagengbokl@163.com, bcandyhm1982@163.com, cwangq5@muohio.edu, djzlin_tju@163.com, elidianpeng@163.com Keywords: simply supported beam; elastic restraint; nature frequency; modal analysis; finite element method Abstract.
Acknowledgement This work has been supported by Tianjin Science and Technology Program (11ZCKFGX03400), the National Natural Science Foundation of China (50975193), Fund for Doctor Station of 2010, the Ministry of Education(20100032110006).
Journal of Sound and Vibration (2001) [3] Megahed, S.M., Nada,A.A., Dynamic Modeling of a Flexible Cantilever Beam an Experimental Technique.
[4] Liu Xijun, JiaQifen: Engineering Vibration Theory and Testing Techniques (High Education Press, Beijing 2004) [5] Shaw SW: Journal of Sound and Vibration Vol.99 (1985), p.23-27 [6] Y.C.Lam: Finite Element in Analysis and Design Vol.34(2000), p.21-27 [7] Liu.Zhonghua, Xiaochun.
Multiple Elastic-Plastic Impacts between Free-Free Beam and Simply Supported Beam, Journal of Mechanical Engineering (2010) [8] Usal, Mustafa Resit: Journal of Reinforced Plastics and Composites Vol.27(2008), p.263-276