Journal article
Effect of superimposed compressive stresses on rolling contact fatigue initiation at hard and soft inclusions
A semi-analytical framework is introduced for the evaluation of favorable residual stresses for delaying rolling contact fatigue initiation. Subsurface stress histories are applied to a micro-scale model accounting for isolated inclusions of different types and geometries. Micro-scale von Mises stresses are calculated based on Eshelby’s method and considered as an estimator of crack initiation due to plastic deformation.
The most critical cases in terms of micro-scale plasticity are identified, and the effect of macro-scale compressive residual stresses is considered. Finally, optimized residual stresses are determined that minimize the maximum attained micro-scale von Mises stress at different depths.
Language: | English |
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Year: | 2020 |
Pages: | 105399 |
ISSN: | 18793452 and 01421123 |
Types: | Journal article |
DOI: | 10.1016/j.ijfatigue.2019.105399 |
ORCIDs: | Poulios, Konstantinos and Niordson, Christian F. |