Title: Local coefficient of friction, sub-surface stresses and temperature distribution during sliding contact

Authors: A. Jourani, M. Bigerelle, L. Petit, H. Zahouani

Addresses: Laboratoire de Mecanique Roberval, UTC, Fre CNRS 2833, Rue Personne de Roberval, 60205 Compiegne, France. ' Laboratoire de Mecanique Roberval, UTC, Fre CNRS 2833, Rue Personne de Roberval, 60205 Compiegne, France. ' Laboratoire de Mecanique Roberval, UTC, Fre CNRS 2833, Rue Personne de Roberval, 60205 Compiegne, France. ' Laboratoire de Tribologie et Dynamique des Systemes, UMR 5551 CNRS/ECL/ENISE, 36, Avenue Guy de Collongue, 69131 Ecully cedex, France

Abstract: The effects of roughness are important in the design of surface texture to minimise friction and wear. In this paper, we developed a three-dimensional numerical model to study the contact between a rough surface and a rigid plane. Important data induced normal loads distribution, local coefficient of friction, and then the tangential load on each asperity. We can also determine the stress distribution, which depends on the contact pressure, real area of contact and local coefficient of friction. The temperature distribution owing to the heat generation over the real contact areas for sliding problems can be given. This parameter depends on the size of the real contact area, the coefficient of friction, the sliding speed and the thermal material properties.

Keywords: surface roughness; numerical modelling; local coefficients of friction; tangential loads; sub-surface stress; temperature distribution; sliding contact; surface texture; sliding speed; thermal material properties.

DOI: 10.1504/IJMPT.2010.031894

International Journal of Materials and Product Technology, 2010 Vol.38 No.1, pp.44 - 56

Published online: 01 Mar 2010 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article