弹性粗糙表面线接触的增量接触模型

IF 3.8 2区 工程技术 Q1 ENGINEERING, MECHANICAL
Sihe Wang  (, ), Weike Yuan  (, ), Xuanming Liang  (, ), Gangfeng Wang  (, )
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引用次数: 0

摘要

本文为平面应变条件下的弹性自阿芬分形粗糙表面建立了增量接触模型。粗糙表面与刚性平面之间的接触被简化为不同高度上相同线接触的累积,其半宽度由截断面积除以接触片数得出。根据二维平面冲头的接触刚度,估算出粗糙表面的总刚度,然后用增量法计算法向载荷。对于各种粗糙表面,所提出模型预测的近似线性载荷-面积关系与有限元模拟结果吻合良好。研究发现,实际平均接触压力在很大程度上取决于粗糙表面的特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An incremental contact model for line contact of elastic rough surfaces

In this paper, an incremental contact model is developed for the elastic self-affine fractal rough surfaces under plane strain condition. The contact between a rough surface and a rigid plane is simplified by the accumulation of identical line contacts with half-width given by the truncated area divided by the contact patch number at varying heights. Based on the contact stiffness of two-dimensional flat punch, the total stiffness of rough surface is estimated, and then the normal load is calculated by an incremental method. For various rough surfaces, the approximately linear load-area relationships predicted by the proposed model agree well with the results of finite element simulations. It is found that the real average contact pressure depends significantly on profile properties.

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来源期刊
Acta Mechanica Sinica
Acta Mechanica Sinica 物理-工程:机械
CiteScore
5.60
自引率
20.00%
发文量
1807
审稿时长
4 months
期刊介绍: Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences. Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences. In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest. Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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