The Contact Between Rough Surfaces With Longitudinal Texture—Part I: Average Contact Pressure and Real Contact Area

[+] Author and Article Information
Hirotoshi Aramaki

Research Center, NSK Ltd., Kanagawa, Japan

Herbert S. Cheng, Yip-Wah Chung

Center for Engineering Technology, Northwestern University, Evanston, Ill 60208

J. Tribol 115(3), 419-424 (Jul 01, 1993) (6 pages) doi:10.1115/1.2921653 History: Received January 17, 1992; Revised July 01, 1992; Online June 05, 2008


This paper describes a model to study the contact between two purely longitudinally rough surfaces based on the parabolic indentor problem in elasticity. Rough surfaces are characterized with three parameters: rms roughness, autocorrelation length, and bearing area. Problems encountered by conventional roughness models are treated here. It is shown that the average contact pressure and real contact area obtained from this model agree very well with a computationally more intensive model developed by Lee (1989), up to the bulk yielding pressure.

Copyright © 1993 by The American Society of Mechanical Engineers
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