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RESEARCH PAPERS

Hertzian Contact of Ground Surfaces

[+] Author and Article Information
D. Nowell, D. A. Hills

Department of Engineering Science, Oxford University, Oxford, OX1 3PJ, England

J. Tribol 111(1), 175-179 (Jan 01, 1989) (5 pages) doi:10.1115/1.3261869 History: Received May 23, 1988; Online October 29, 2009

Abstract

Line contact between two elastic cylinders, one having a rough surface modelled as a periodic waviness is considered. The effects of asperity tip radius and characteristic wavelength on the surface and subsurface stress states are found, and the conditions under which St. Venant’s principle may be invoked determined. The reduction in surface strength compared with smooth contact is quantified and is found to be very sensitive to the tip curvature of the asperities.

Copyright © 1989 by ASME
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