The Prediction of Fatigue Strength for Shot-peened Materials by Fracture Mechanics

Author:  Akira Tange
Source:  Conf Proc 2011: ICSP-11 South Bend, IN USA (pgs. 189-194)
Doc ID:  2011031
Year of Publication:  2011
Abstract:  
Abstract There are few papers concerning the prediction of fatigue strength for a finite life of shot-peened materials. This reflects the complexity of knowing the effects of the magnitude of dent and compressive residual stress distribution on the fatigue strength of shot-peened materials. In this study the effects of the hardness of material and SP conditions on fatigue strength for finite life are evaluated by rotary bending fatigue tests. Therewith the prediction of fatigue strength for finite life is analyzed by the fracture mechanics. Key Words : fatigue, fatigue strength for finite life, shot-peening, prediction of fatigue strength