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Title: Fatigue tolerant design of rolling bearings
Authors: Gill, Simon Philip
Lewis, M.
First Published: 5-Oct-2015
Publisher: SAGE Publications
Citation: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2015 (In press)
Abstract: A quantitative method for assessing the influence of steel cleanliness on the fatigue life of rolling bearing raceways is presented. The approach systematically accounts for the effect of the highly variable stress state within raceways. Finite element analysis is used to determine the stress state in the bearings. A fracture mechanics model for the safe stress amplitude as a function of inclusion size is employed from Lewis and Tomkins. The size and number of large inclusions in a large volume of steel are estimated by the Generalised Pareto Distribution. These three elements are combined to determine the failure probability of the raceway in an example rolling bearing. A sensitivity analysis to the various microstructural input parameters is conducted. It is found that the size distribution of the larger inclusions is the most important factor in controlling the fatigue resistance of rolling bearings, and that residual stresses must be considered to produce realistic predictions.
DOI Link: 10.1177/1350650115610358
ISSN: 1350-6501
eISSN: 2041-305X
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © IMechE 2015. Reprints and permissions:
Description: Deposited with reference to the publisher’s open access archiving policy, available at
Appears in Collections:Published Articles, Dept. of Engineering

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