The Optimal Wearpath Principle

[+] Author and Article Information
P. A. Engel

IBM Corporation, System Products Division, Endicott, N. Y.

J. of Lubrication Tech 99(2), 236-244 (Apr 01, 1977) (9 pages) doi:10.1115/1.3453040 History: Received July 06, 1976; Online October 20, 2010


The concept of the optimal wearpath is helpful in determining the geometrical formation of the wear scar due to repeated contact loading. By definition it is that shape which alleviates the critical contact failure parameter(s) the fastest way. In the present paper the mathematical formalism is set forth for the ensuing optimization problem. The general prescription for formulating a wear law for a specific application (sliding, rolling, impact, and hybrids) is to combine the wear mechanism with the optimal wearpath. Examples for impact wear are presented, using both macroscopic and microscopic wear models.

Copyright © 1977 by ASME
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