Sliding interaction and wear studies between two hemispherical asperities based on finite element approach. (27th June 2008)

• Record Type: Journal Article
• Authors: Shankar, S.; Mayuram, M.M.
• Is Part Of: International journal of surface science and engineering. Volume 2:Number 1/2(2008)
• Page Start: 71
• Page End: 83
• Publication Date: 2008-06-27
• Subjects: asperity?asperity interaction -- finite element method -- modelling -- FEM -- elastic?plastic behaviour -- sliding process -- wear depth -- shear force -- friction coefficient -- wear prediction -- contact stress; Surfaces (Physics) -- Periodicals; Surface chemistry -- Periodicals; Surfaces (Technology) -- Periodicals; Tribology -- Periodicals; 530.417
• Languages: English
• ISSNs: 1749-785X

Abstract

A better insight of the wear as well as frictional process is possible by understanding the nature of the sliding interactions between the two contacting asperities. A Finite Element Method (FEM) is developed to calculate the wear depth and volume of material displaced laterally between two contacting asperities during sliding. Two three-dimensional hemispherical asperities with varying overlaps are modelled, the normal force acting on the asperity, shear force and the overall friction coefficient are determined for different E/Y ratios. Wear prediction can then be attempted by combining the influences of contact stress and a surface wear coefficient.