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

Hossein Alizadeh Otorabad; Parisa Hosseini Tehrani; Davood Younesian

doi:10.1080/15397734.2018.1457446

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

Hossein Alizadeh Otorabad, Parisa Hosseini Tehrani^*, Davood Younesian

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

14 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	751-766
Journal	Mechanics Based Design of Structures and Machines
Volume	46
Issue number	6
DOIs	https://doi.org/10.1080/15397734.2018.1457446
Publication status	Published - 2018

Keywords

Impact force
railway
stress
transient FEM
wheel flat

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10.1080/15397734.2018.1457446

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

abstract = "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{\textquoteright}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.",

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AU - Otorabad, Hossein Alizadeh

AU - Tehrani, Parisa Hosseini

AU - Younesian, Davood

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

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KW - stress

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

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Keywords

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