Abstract
A procedure has been developed for the post yield fatigue crack growth analyses. The method is based on an extension of the strip yield crack closure model. This procedure accounts for the post yield effect by considering residual stresses caused by the gross yield at the peak fatigue load. Three dimensional weight function approach is used to solve influence functions as well as stress intensity factors needed for the post yield crack closure solution. It has been shown that the method is very effective in dealing with part-through fatigue crack growth problems under constant and variable amplitude fatigue loading conditions when gross yield occurs at the stress concentration.
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