A Pitting Model for Rolling Contact Fatigue

[+] Author and Article Information
L. M. Keer

Department of Civil Engineering, Northwestern University, Evanston, Ill. 60201

M. D. Bryant

Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, N.C. 27650

J. of Lubrication Tech 105(2), 198-205 (Apr 01, 1983) (8 pages) doi:10.1115/1.3254565 History: Received May 11, 1981; Online November 13, 2009


The interaction of a Hertzian contact, including friction, with an angled surface-breaking crack is studied with a view toward qualitatively explaining certain aspects of rolling contact fatigue. Cyclic loading and unloading of the surface crack, which is assumed to be embedded in a rolling wheel, is simulated by assuming that stresses having a Hertzian distribution travel across the half space such that one passage is equivalent to one cycle of rolling. By increasing the crack’s length and calculating the stress intensity factor, an estimate of the fatigue life can be determined.

Copyright © 1983 by ASME
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