کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
780994 | 1463789 | 2012 | 8 صفحه PDF | دانلود رایگان |
An analytical method is proposed to calculate the interaction between operation stresses and shot peening caused residual stresses. The obtained variation of residual stress is integrated into Findley model to predict the fatigue life of shot-peened materials. Biaxial stress state is taken into account in conventional Findley model, and critical plane is studied for both in-plane and out-of-plane shear stress. In the end, taking example for AISI 4340 steel, the prediction of fatigue life is made for two different shot peening conditions. A good agreement between measurements and predictions can be observed.
► Fatigue life of shot-peened material is characterized by multiaxial stress state.
► Nonlocal treatment is used to consider the effect of stress caused by shot peening.
► The proposed method integrates the effect of shot peening in Findley model.
Journal: International Journal of Fatigue - Volume 43, October 2012, Pages 134–141