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Identification of Damages and Stress Analysis of Rail/Wheel Rolling Contact Region

机译：轨道/滚轮滚动接触区域损伤和应力分析的识别

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This paper presents the identification of damages and stress analysis of rail/wheel rolling contact region. The railhead surface of used rail track was investigated to identify damages and the hardness of the rail/wheel contact area was measured. Finite element method FEM code, ANSYS was used to determine the stress distribution at vicinity of rail/wheel contact area. The results showed that the hardness increased on the contact area between rail and wheel due to repeated rolling contact of rail and wheel surface. Severe damages and cracks were observed on the railhead surface and in the cross section of the rail at the contact region. The FEM simulation showed that the highest stress distribution regions were matched with the area of severely damage and high hardness obtained from the observation and experimental results.
机译：本文介绍了轨道/轮滚动接触区域的损伤和应力分析的识别。研究了二手轨道轨道的轨道表面以识别损伤，测量轨道/车轮接触面积的硬度。有限元方法FEM代码，ANSYS用于确定轨道/车轮接触区域附近的应力分布。结果表明，由于轨道和轮表面的重复滚动接触，轨道和轮之间的接触面积增加了硬度。在轨道表面上观察到严重的损伤和裂缝以及接触区域的轨道的横截面。有限元模拟表明，最高应力分配区域与从观察和实验结果中获得的严重损伤和高硬度相匹配。

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