Applicability of a Rigid Body Spring Model to Impact Problems of Axi-symmetric Elastic Bodies

Abstract

Present paper describes a new development for axi-symmetric rigid body spring model (RBSM). Usual RBSM does not take into account an element strain. In oder to analyze accurate stress wave propagation phemomenon, in this study, the concept of element strain has been introduced to estimate exact element properties. Numerical results obtained for axi-symmetric impact problems have a good agreement with the exact solutions based on the theory of elastodynamics.