On the acceleration waves in second-order elastic, isotropic, compressible, and homogeneous materials
In this paper we propose a Signorini's perturbation method to investigate the propagation of acceleration waves in second-order elastic, isotropic, compressible, and homogeneous materials. The method is applied when the undisturbed region is subjected to a simple extension or to a simple shear. In these cases, we evaluate the first-order terms of the speeds and the amplitudes of the acceleration waves in any arbitrary direction of propagation. (C) 2008 Elsevier Ltd. All rights reserved.
acceleration waves perturbation method nonlinear elastic media second-order effects principal waves