Abstract
The paper describes the shot peening process and derives expressions for the indentation of surfaces by single shot impacts. These are supplemented by analysis of surface coverage and an assessment of the sources of residual stress. The high strain rate mechanical properties of 5052 aluminium alloy, 316 stainless steel and Ti–6Al–4V have been measured for use in a FEM/DEM simulation model. Specimens of these alloys have also been shot peened and examination of their surfaces has allowed an estimate of shot velocity to be made. Simulations of the process have been compared with diffraction scanning measurements of residual stress profiles and the correlation between the data is good. Procedures for optimising the shot peening process have been proposed.
Get full access to this article
View all access options for this article.