Some computational aspects for analysis of low- and high-velocity impact of deformable bodies

In this paper, we present some numerical algorithms devoted to analysis of low- and high-velocity impact of deformable bodies. For modeling of contact phenomena involved in impact problems, an implicit method is used rather than the most popular penalty explicit method. For the appropriate time integration of the discretized equation of motion, a first order algorithm is suggested rather than the most common second order algorithms such as Newmark, Wilson, etc. Numerical results are presented for dynamic analysis such as low-velocity impact of an elastic plate on a rigid surface with rebounding and high-velocity impact of an elastic-plastic copper bar on a rigid wall. (C) 2002 Elsevier Science Ltd, All rights reserved.