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mohajerani--a
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Effect of residual stress on stress intensity factors of fretting fatigue cracks
, Article International Journal of Microstructure and Materials Properties ; Volume 2, Issue 2 , 2007 , Pages 164-177 ; 17418410 (ISSN) ; Mohajerani, A ; Sharif University of Technology
Inderscience Publishers
2007
Abstract
The effect of compressive Residual Stress (RS) on the Stress Intensity Factors (SIFs) of fretting fatigue cracks was studied using semi-analytical methods. The fretting fatigue of a half-plane in contact with a flat rounded pad was taken into consideration, and RS such as those created by shot-peening were added to the model. Studies of several RS profiles were accomplished to consider the effect of changes in RS caused by stress relaxation during service or pretreatment and manufacturing discrepancies regarding parameters. The distribution of dislocations method was applied to the calculation of the SIFs of these cracks and was shown to be capable of dealing with these kinds of problems. It...