Journal
TRIBOLOGY INTERNATIONAL
Volume 66, Issue -, Pages 315-323Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2013.06.008
Keywords
Bearing ring; Material defects; Rolling contact fatigue; Stress intensity factors
Categories
Funding
- National Basic Research Program of China [2011CB706605]
- National Natural Science Foundation of China [51135007]
- Natural Science Foundation of Hubei province [2011CDA12]
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The effects of material defects such as pores on the crack initiation under rolling contact fatigue (RCF) in a bearing ring are investigated here. First, the main contact position between the ball and the raceway surface is investigated, and the effect of the depth of the pore on the crack initiation is analyzed. Second, several parameters, such as radial load, surface traction and raceway groove curvature radius (RGCR), are varied to evaluate stress intensity factors (SIFs), crack growth rates and crack growth angles. The results provide valuable guidelines for enhanced understanding of RCF in bearings. (C) 2013 Elsevier Ltd. All rights reserved.
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