Application of a non local fatigue stress gradient- weigth function approach to predict the crack nucleation risk induced by Fretting Fatigue

摘要

Fretting-Fatigue problems are very complex to address due to the multiaxiality and the very sharp stress gradients imposed below the interfaces.Hence,multiaxail and non local fatigue approach must be considered.An experimental cylinder/plane fretting fatigue and plain fretting analysis a 35 Ni Cr Mo 16 low alloyed steel at 106 cycles has been performed to investigate the incipient crack nucleation response for various stress gradient conditions.