Wear modelling in wheel–rail contact problems based on energy dissipation

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS
A. Myslinski, A. Chudzikiewicz
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引用次数: 1

Abstract

ABSTRACT This work is concerned with the numerical procedure to solve two-dimensional wheel-rail contact problem between a rigid wheel and an elastic-plastic rail lying on a rigid foundation. The contact phenomenon includes Coulomb friction, frictional heat generation as well as the wear of the contacting surfaces. The wear depth function appears as an internal variable in the non-penetration condition updating the gap between the worn surfaces of the bodies. Moreover the dissipated energy due to friction is calculated to evaluate the loss of material and to determine the shape of the contacting surfaces during the wear evolution process. This contact problem is solved numerically using the finite element method as well as the operator splitting approach and semi-smooth Newton method. The distribution of contact surface stresses and temperatures as well as the evolution of the shape of the contact surfaces and the wear depth are reported and discussed. GRAPHICAL ABSTRACT
基于能量耗散的轮轨接触问题磨损建模
本文研究了刚性车轮与刚性基础上的弹塑性轨道之间二维轮轨接触问题的数值求解方法。接触现象包括库仑摩擦、摩擦热的产生以及接触面的磨损。在非穿透状态下,磨损深度函数作为内部变量出现,更新了物体磨损表面之间的间隙。此外,计算摩擦耗散能,以评估材料的损失,并确定在磨损演变过程中接触面的形状。采用有限元法、算子分裂法和半光滑牛顿法对该接触问题进行了数值求解。报道并讨论了接触面应力和温度的分布以及接触面形状和磨损深度的演变。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Tribology - Materials, Surfaces & Interfaces
Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-
CiteScore
2.80
自引率
0.00%
发文量
15
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