JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
PAPERS
Surface Crack Growth Path and Fatigue Life Prediction Due to Repeated Rolling/Sliding Contact
Takahito GOSHIMASotomi ISHIHARAMasayoshi SHIMIZUHirokazu YOSHIDAYuji TSUCHIDA
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2003 Volume 46 Issue 4 Pages 582-589

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Abstract

This paper deals with the surface crack growth path description and the fatigue life prediction due to repeated rolling/sliding contact on the elastic half-space, accompanied by frictional heat generation and crack-face pressure. The stress intensity factors are analyzed for the surface crack which is kinked in multiple times from the inclined initial main crack. The rolling/sliding contact is simulated as a Hertzian contact pressure and a frictional load with heat generation, moving with constant velocity over the surface of the half-space. Applying the maximum energy release rate criterion to each kinked angle, the crack growth path can be described, and employing a mixed mode fatigue crack growth law, the associated fatigue life also can be predicted. The effects of frictional coefficient, slide/roll ratio and crack-face pressure on the crack growth path and associated life are considered for a high carbon-chromium bearing steel (AISI52100).

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© 2003 by The Japan Society of Mechanical Engineers
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