The Effect of Fatigue Crack Growth on Mechanical Residual Stress Redistribution

Fatigue life is an important dynamic property and it is affected by the residual stress field near the crack tip. Residual stresses can be produced during many manufacturing processes such as forming, welding and machining. Residual stresses have a significant influence on the fatigue life of structures. it is well-known that tensile residual stresses will reduce the fatigue life of the while compressive residual stresses will decrease the growth of the fatigue crack. In the last decades, several efforts have been devoted to the investigation of residual stress effects on fatigue crack growth rates. Farrahi et al.