Sliding interaction and wear studies between two hemispherical asperities based on finite element approach
by S. Shankar, M.M. Mayuram
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 2, No. 1/2, 2008

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.

Online publication date: Thu, 26-Jun-2008

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