Surface Stress Concentration Analysis of Shot Peened Aluminium Alloys
Fatigue limit for surface crack initiation on shot peened Aluminium Alloys resulted to be determined by surface residual stress and stress concentration, according to the magnitude of the applied stress. The effect of surface roughness considered as micro-notches (dents) has been analysed by using the Vallellano and Navarro’s formulation. It was also determined that the stress gradient associated to those dents dominates over the closure stress effect.
Alexander Balankin, José Martínez Trinidad and Orlando Susarrey Huerta
J. Solis-Romero et al., "Surface Stress Concentration Analysis of Shot Peened Aluminium Alloys", Key Engineering Materials, Vol. 449, pp. 70-76, 2010