Analysis of the discrete contact characteristics based on the Greenwood-Williamson model and the localization principle
作者机构：Ishlinsky Institute for Problems in Mechanics RASMoscow119526Russia
出 版 物：《Friction》 (摩擦（英文版）)
年 卷 期：2024年第12卷第5期
页 面：1042-1056页
核心收录：
学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程]
基 金：supported the Russian Science Foundation(No.22-49-02010).
主 题：surface roughness elasticity Greenwood-Williamson model localization principle asperity interaction
摘 要：The contact of a rigid body with nominally flat rough surface and an elastic half-space is considered.To solve the contact problem,the Greenwood-Williamson statistical model and the localization principle are used.The developed contact model allows us to investigate the surface approach and the real contact area with taking into account the asperities interaction.It is shown that the mutual influence of asperities changes not only contact characteristics at the macroscale,but also the contact pressure distribution at the microscale.As follows from the results,the inclusion in the contact model of the effect of the mutual influence of asperities is especially significant for studying the real contact area,as well as the contact characteristics at high applied loads.The results calculated according to the proposed approach are in a good agreement with the experimentally observed effects,i.e.,the real contact area saturation and the additional compliance exhaustion.
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