Shot-peening is a cold working process used to impart compressive residual
stresses in the exposed surface layers. Despite its importance to the aeros
pace and automobile industries, little or no attention has been devoted to
the accurate modelling of the process. It is therefore the purpose of this
study, which is part of an extensive research program, to conduct dynamic e
lasto-plastic analysis of the process using a single shot. Specifically, it
is desired to evaluate the effect of shot velocity, size and shape upon th
e time variations of the contact force, the velocity history, the plastic z
one development and its growth and unloading residual stresses. (C) 1999 El
sevier Science S.A. All rights reserved.