3D transient elasto-plastic finite element analysis of a flatted railway wheel in rolling contact

被引：13

作者：

Otorabad, Hossein Alizadeh ^{[1
,2
]}

Tehrani, Parisa Hosseini ^{[1
]}

Younesian, Davood ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Ctr Excellence Railway Transportat, Sch Railway Engn, Hengam St,Resalat Sq, Tehran 1684613114, Iran

[2] Delft Univ Technol, Dept Mat Sci & Engn, Delft, Netherlands

来源：

MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES | 2018年 / 46卷 / 06期

关键词：

Impact force; railway; stress; transient FEM; wheel flat; DYNAMIC INTERACTION; TRACK; IMPACT; TRAIN; DETERIORATION; PREDICTION; SIMULATION; FORCES; SQUATS; MODEL;

D O I：

10.1080/15397734.2018.1457446

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A precise study of stress state is crucial for an accurate evaluation of railway wheel defects. Wheel flats cause severe impact loads, which aggravate wheel failure. This paper describes 3D transient elasto-plastic finite element analyses of undamaged and flatted railway wheels using Chaboche's plasticity model as material model. The effect of the impact load is considered on contact region parameters that influence the stress. The results show that in a flatted wheel, the maximum contact force might not lead to a maximum von-Mises stress. It occurs in all cases considered, in a cross-section just above the leading edge of the wheel flat.

引用

页码：751 / 766

页数：16

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