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RESEARCH PAPERS

A Deterministic Conformal/Counterformal Microcontact Model

[+] Author and Article Information
V. Aronov, S. Nair, J. M. Wang

Department of Mechanical and Aerospace Engineering, Illinois Institute of Technology, Chicago, IL 60616

J. Tribol 116(4), 833-840 (Oct 01, 1994) (8 pages) doi:10.1115/1.2927342 History: Received February 11, 1993; Revised June 18, 1993; Online June 05, 2008

Abstract

Microcontact models, describing contact of two rough surfaces, are fundamental for the modeling of friction and wear. This paper presents a critical analysis of existing models and discusses their limitations. A new deterministic microcontact model based on conformal/counterformal contact of asperities, as opposed to the combined surface statistics and counterformal asperity contact, is presented. Based on this model, a computer program has been developed. The input data are the digitized 3-D topographies, separately measured from the two contacting surfaces. The program first determines the original mating position and then calculates the surface contact parameters: contact radius, contact pressure, real contact area and the number of elastic, plastic, conformal, and counterformal contacts.

Copyright © 1994 by The American Society of Mechanical Engineers
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