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Finite Element Simulation of Residual Stress in Heavy Rail Zhongliang Tian1,a, Hu Zhu2, b, Lin Chen2,c, Zhangzhong Wu1,c, Yongqiang Duan1,c and Bingyi Wang1,c 1 Rail and Beam Plant, Baogang Group Company, Baotou, Inner Mongolia, 014010, China 2 Inner Mongolia University of Science & Technologic, Baotou, Inner Mongolia, 014010, China atian_1982628@yahoo.com.cn, bpigtigerfly@163.com, cchenlin39805@163.com Keyword: Heavy Rail; Compound Straightening; Finite Element; Residual Stress Abstract: The test here is to simulate the process of flat and vertical roll from Baogang heavy rail using the finite element, which analyzes the steel, the high strings, the initial stress and straightening process effect on residual stress.
Material and section properties Deformation simulation of rail straightening process, straightening roller is the rigid body that it does not definition material properties. 60Kg / m rail's elastic modulus, Poisson's ratio parameters is in Table 3.
Table 3 rail's material parameters Material parameters Density ρ(kg.m-3) Modulus E(Pa) Poisson's ratio Rail 7800 2e11 0.29 Analysis 3.1 Steel’s influence for rail residual stress We simulated four different steel straightening process of BAOGANG.
References [1] CHEN Chun-yang SUN Hai-lin LI Xue-wei .Impact of High-Speed Passenger Railway on Regional Economic Development[J]．JOURNAL OF BEIJING JIAOTONG UNIVERSITY，2005，4(4)：6-10
[3] YANG Wen-qing，CHEN-Lin，ZHAO Yu-ping，Etc.．Finite element simulation and calculation analysis on the straightening and deformation of heavy rail finite element[J]．Journal of Baotou University of Iron and Steel Technology，2005，24(3)：284-287．

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Thermoplastic polyurethane (TPU) was obtained from Lubrizol Advanced Materials, Inc.
Acknowledgements This project was financed by Zhejiang Provincial Natural Science Foundation (Grant No.
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More specifically, the SiC/SiO2 MC transport simulator requires the following as input: the DFT-calculated densities of states (DOS), physical dimensions of the cell simulated, as well as material and phonon properties of the system considered.
Above, we use material and phonon constants such as,,, andwhich respectively represent deformation potential, density, sound velocity and optical phonon energy.
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Materials and Methods Materials Traditional fermented yoghurt was kindly supplied by local inhabitant in Qiqihar County, Heilongjiang Province, China. γ-Aminobutyric acid (≥99%) and lysozyme were purchased from Sigma Company, USA.
Acknowledgements This work was supported by the science and technology research projects of Heilongjiang Education Department (12531801).
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Karama et al.[2] investigated the stress concentration around a circular hole in the composite plate under longitudinal tensile load by using non contact electronic speckle pattern interferometer (ESPI) method and Abaqus finite element coding due to increasing use of composite materials.
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Material Young Modulus, E is 70 GPa and Poisson ratio, υ is 0.3.
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Materials and Methods Materials Sodium alginate, chitosan, nanometer-tourmaline, sodium polyacrylate, silane coupling agent KH-570,electronic balance , JEOL JSM-6460 LV scanning electron microscope, Spectrum One- B Fourier transform infrared spectrometer, DMAXRB- diffract meter Fiber Preparation and Testing Method Fiber preparation: dispersing agent (sodium polyacrylate) and silane coupling agent KH-570 were taken in the container with water, and the sodium alginate, chitosan and nanometer tourmaline powder were mixed by wet-spinning after fully dissolved.
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