Instrumental Single Particle Impact Tests Using Production Shot: The Roll of Velocity, Incidence Angle and Shot Size

Author:  Marsha K. Tufft
Source:  Conf Proc: ICSP-6, (presented only)
Doc ID:  1996126
Year of Publication:  1996
Abstract:  
Shot peening is widely used in the aricraft industry for fatigue life enhancement derived from compressive residual stresses. Traditionally, almen strips are used to measure the shot peening intensity, which is directly related to the resulting residual stress profile induced. These profiles do not appear to be sensitive to shot size or velocity. However, peening also induces plastic strains which are potentially detrimental. This effect appears to be very sensityve to shot size and velocity, and not dependent on intensity.