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RESEARCH PAPERS

The Influence of Thermal Deformation on the Contact Temperature of Sliding Asperities

[+] Author and Article Information
C.-J. Lu, D. B. Bogy

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California Berkeley, CA 94720

J. Appl. Mech 59(2S), S102-S106 (Jun 01, 1992) doi:10.1115/1.2899472 History: Received February 14, 1991; Revised July 22, 1991; Online March 31, 2008

Abstract

The effect of thermal deformation on contact temperature is investigated by considering a spherical asperity sliding on the surface of a semi-infinite insulated solid. The usual assumption that thermal deformation does not change the contact conditions is examined. The problem is mathematically formulated using appropriate Green’s functions to derive singular integral equations for the contact pressure. The relations between the radius of contact area, indentation, surface temperature, and moving velocity are calculated. A two asperities model is used to explain the load partition due to thermal deformation.

Copyright © 1992 by The American Society of Mechanical Engineers
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