Application of different fatigue strength criteria on shot peened notched parts. Part 2: nominal and local stress approaches

In this work a series of recognized fatigue strength evaluation methods are applied on two notched shot peened specimens under different fatigue loading. After having considered the approaches based on fracture mechanics (see Part 1), now the local stress methods and the FKM guideline (which includes both a nominal stress approach and a local stress one) are considered. The results allow evidencing the criteria able to better consider the effect of SP and to underline the critical points related to the application of the mentioned criteria to shot peened parts. In this regard the FKM guideline and the approach based on critical distance theory are found to provide more accurate results.