An Analysis of Contact Between a Pair of Surface Asperities During Sliding

[+] Author and Article Information
Z. Lisowski

Technical University Kraków, ul. Warszowska, 24, 31-155 Kraków Poland

T. Stolarski

Technical University Gdańsk, ul. Majakowskiego 11/12, 80-231 Gdonsk-Wrzeszcz, Poland

J. Appl. Mech 48(3), 493-499 (Sep 01, 1981) (7 pages) doi:10.1115/1.3157662 History: Received June 01, 1980; Online July 21, 2009


An analysis of friction junction formed by a pair of interacting hemispherically shaped surface asperities was carried out. Depending on the maximum geometrical interference of the asperities junction deformation can be elastic or plastic. Elastic junctions were analyzed using Hertz solution. Depending on whether the junction is welded or nonwelded it was assumed that the interfacial shear stress is constant and equal to or less than the bulk shear strength of the weaker material. Solution for the case of plastic junction was approximated by Green’s slip-line field solution.

Copyright © 1981 by ASME
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