The Shot Peening of Metals — Mechanics and Structures

Shot peening is viewed as a process involving multiple and progressively repeated impact. The residual stress field under each impact interacts with similarly produced neighbouring fields to finally produce a residual stress distribution varying in depth but uniform in planes, parallel to the surface. Statical and dynamical aspects of single impact are considered and a number of simple theoretical expressions for the parameters of the process are presented. New concepts such as shakedown, reversed plastic yielding and Bauschinger effect as well as strain rate are thought to contribute a significant role in the process.