Prediction of notch fatigue limits in a compressive residual-stress field

Analyses are made for predicting fatigue limit of notches with and without the effect of compressive residual stresses. The residual stresses are introduced by shot peening or surface rolling, and detected by X-ray diffraction technique. The theoretical work is based on the local stress method and focused on an asymmetrical stress condition at the notch root. Fatigue tests are carried out, and an agreement is reached between predicted and tested data. Copyright (C) 1996 Elsevier Science Ltd