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RESEARCH PAPERS

Analysis of Crack Propagation in Roller Bearings Using the Boundary Integral Equation Method—A Mixed-Mode Loading Problem

[+] Author and Article Information
L. J. Ghosn

Cleveland State University, Cleveland, Ohio 44115

J. Tribol 110(3), 408-413 (Jul 01, 1988) (6 pages) doi:10.1115/1.3261643 History: Received January 08, 1988; Online October 29, 2009

Abstract

Crack propagation in a rotating inner raceway of a high-speed roller bearing is analyzed using the boundary integral method. The model consists of an edge plate under plane strain condition upon which varying Hertzian stress fields are superimposed. A multidomain boundary integral equation using quadratic elements was written to determine the stress intensity factors KI and KII at the crack tip for various roller positions. The multidomain formulation allows the two faces of the crack to be modeled in two different subregions making it possible to analyze crack closure when the roller is positioned on or close to the crack line. KI and KII stress intensity factors along any direction were computed. These calculations permit determination of crack growth direction along which the average KI times the alternating KI is maximum.

Copyright © 1988 by ASME
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