Development of an improved Iwan model considering contact surface wear evolution and analysis of model contact characteristics

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-08-29 DOI:10.1016/j.wear.2025.206314

Shijie Pan , Liang Zhu , Guangtao Yu , Chaofeng Li , Jinghu Tang , Yulin Jiang

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引用次数: 0

Abstract

In this study, an improved Iwan model considering the evolution of contact surface wear was developed by defining a set of contact surface wear functions. The accuracy of the proposed model was subsequently validated through contact surface wear experiments. Based on this foundation, the contact characteristics of the model under various contact conditions were analyzed in detail. The results indicate that the increase of normal load causes the viscous range of the contact surface to increase gradually. In contrast, the increase of displacement amplitude leads to the change of the contact surface from local sliding to overall sliding. With the increase of wear cycles, the contact stiffness and friction coefficient of the worn contact surface also increase accordingly and gradually tend to be stable. In addition, under the overall sliding state, with the increase of the normal load and displacement amplitude, the dissipated energy of the contact surface also increases accordingly, and the wear phenomenon of the contact surface intensifies. This study can provide important theoretical guidance for studying contact surface wear mechanisms and life prediction.

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考虑接触面磨损演变的改进Iwan模型的建立和模型接触特性的分析

本研究通过定义一组接触面磨损函数，建立了一个考虑接触面磨损演变的改进Iwan模型。随后通过接触面磨损实验验证了该模型的准确性。在此基础上，详细分析了模型在不同接触条件下的接触特性。结果表明：法向载荷的增大使接触面的粘滞范围逐渐增大；位移幅值的增大导致接触面由局部滑动变为整体滑动。随着磨损循环次数的增加，磨损接触面的接触刚度和摩擦系数也相应增大，并逐渐趋于稳定。此外，在整体滑动状态下，随着法向载荷和位移幅值的增大，接触面的耗散能量也相应增大，接触面的磨损现象加剧。该研究可为接触面磨损机理研究和寿命预测提供重要的理论指导。

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

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.