Abstract
The stress fields near crack tip in fretting fatigue were analyzed using the finite element method to investigate the mechanism of crack propagation. The stress distributions near crack tip obtained from finite element analysis throughout loading cycles showed irreversible variations due to the effect of friction at the contact area. The stress fields around the crack tip were also calculated using the values of stress intensity factors K_I and K_II, and the obtained stress distributions agreed with the finite element analysis. The mechanism of crack growth in fretting fatigue has been discussed from the obtained results, and a crack growth model for explaining the oblique crack propagation in fretting fatigue has been proposed.
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