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首页> 外文会议>ASME/IEEE/ASCE joint rail conference 2008 : Mechanical and civil engineering papers ; Electrical engineering papers >ANALYSIS OF RAILROAD TANK CAR SHELL IMPACTS USING FINITE ELEMENT METHOD
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ANALYSIS OF RAILROAD TANK CAR SHELL IMPACTS USING FINITE ELEMENT METHOD

机译：铁路坦克车壳撞击的有限元分析。

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摘要

This paper examines impacts to the side of railroad tank cars by a ram car with a rigid indenter using dynamic, nonlinear finite element analysis (FEA). Such impacts are referred to as shell impacts. Here, nonlinear means elastic-plastic material behavior with large deformations. Several computational issues are addressed. The dynamic response of the shell structure coupled with the sloshing response of fluid inside the tank is characterized through various mesh formulations. Puncture of the tank is calculated using a material failure criterion based on the general state of stress in the shell structure in terms of stress triaxiality. The FEA models were verified and validated in previous work. In the present work, the verified and validated FEA framework is applied to examine the effect of various factors on the structural response of the tank. These factors include shell thickness and indenter geometry.
机译：本文使用动态，非线性有限元分析（FEA）研究了带有刚性压头的撞车对铁路罐车侧面的影响。此类影响称为外壳影响。在这里，非线性意味着具有大变形的弹塑性材料行为。解决了一些计算问题。壳体结构的动态响应与罐内流体的晃动响应相结合，通过各种网格公式来表征。基于材料在壳体三轴应力状态下的一般应力状态，使用材料破坏准则计算出水箱的穿刺。 FEA模型在先前的工作中得到了验证。在目前的工作中，经过验证和验证的有限元分析框架可用于检查各种因素对储罐结构响应的影响。这些因素包括壳体厚度和压头几何形状。

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