Strongly Anisotropic Rough Surfaces

[+] Author and Article Information
A. W. Bush, G. P. Keogh

Teesside Polytechnic, Cleveland, United Kingdom

R. D. Gibson

Newcastle Upon Tyne Polytechnic, Newcastle Upon Tyne, England

J. of Lubrication Tech 101(1), 15-20 (Jan 01, 1979) (6 pages) doi:10.1115/1.3453271 History: Received November 20, 1977; Revised March 17, 1978; Online October 20, 2010


The statistics of a strongly anisotropic rough surface are briefly described. The elastic contact of rough surfaces is treated by approximating the summits of a random process model by parabolic ellipsoids and applying the Hertzian solution for their deformation. Load and real contact area are derived as functions of the separation and for all separations the load is found to be approximately proportional to the contact area. The limits of elastic/plastic contact are discussed in terms of the plasticity index.

Copyright © 1979 by ASME
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