Contact Mechanics of Rough Spheres: Crossover from Fractal to Hertzian Behavior

IF 1.5 Q3 ENGINEERING, MECHANICAL
R. Pohrt, V. Popov
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引用次数: 40

Abstract

We investigate the normal contact stiffness in a contact of a rough sphere with an elastic half-space using 3D boundary element calculations. For small normal forces, it is found that the stiffness behaves according to the law of Pohrt/Popov for nominally flat self-affine surfaces, while for higher normal forces, there is a transition to Hertzian behavior. A new analytical model is derived describing the contact behavior at any force.
粗糙球体的接触力学:从分形到赫兹行为的交叉
利用三维边界元计算方法研究了粗糙球与弹性半空间接触时的法向接触刚度。对于较小的法向力,发现其刚度在名义上平坦的自仿射表面上符合Pohrt/Popov定律,而对于较大的法向力,则过渡到赫兹行为。导出了一种新的解析模型,描述了在任何力作用下的接触行为。
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
Advances in Tribology
Advances in Tribology ENGINEERING, MECHANICAL-
CiteScore
5.00
自引率
0.00%
发文量
1
审稿时长
13 weeks
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