考虑磨损影响的铁路制动盘热裂纹扩展分析

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-10-05 DOI:10.1016/j.wear.2025.206371

Wei Chen , Jiliang Mo , Xiaocui Wang , Qixiang Zhang , Wenwei Jin , Chunguang Zhao

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引用次数: 0

摘要

本文介绍了一种基于热-应力-磨损全耦合方法的铁路制动盘热致裂纹扩展数值分析方法。通过对热磨损预测的实验验证，验证了该方法的可靠性。然后，确定制动后制动盘的残余应力，进行裂纹扩展模拟。当忽略磨损时，得到了更为集中的温度和应力分布。此外，由于磨损导致的材料去除会消散一部分摩擦热，导致与没有磨损的情况相比，温度和残余应力水平更低，最终导致对制动盘疲劳寿命的低估。因此，界面磨损是影响铁路制动盘热致裂纹扩展行为和疲劳寿命的重要因素。

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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Thermal crack propagation analysis of railway brake discs considering wear effects via a full thermo-mechanical coupling approach

This paper introduces an innovative numerical method for analyzing the thermal-induced crack propagation of railway brake discs based on a fully coupled thermo-stress-wear approach. The method's reliability is confirmed through experimental validation of its thermal and wear predictions. Subsequently, the residual stress in the brake disc after braking is determined for crack propagation simulation. It is found that more concentrated temperature and stress distributions are obtained when wear is ignored. Moreover, material removal due to wear dissipates a portion of the frictional heat, leading to lower temperature and residual stress levels compared to scenarios without wear, which ultimately cause underestimation on the fatigue life of the brake disc. Therefore, interfacial wear is a highly influential factor regarding the propagation behavior and fatigue life of the thermal-induced crack of the railway brake disc.

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.