Non-linear elastodynamic analysis by the BEM: an approach based on the iterative coupling of the D-BEM and TD-BEM formulations

The present paper is concerned with the development of a scheme based on iterative coupling of two boundary element formulations to obtain time-domain numerical solution of dynamic non-linear problems. The domain is divided into two sub-domains: the sub-domain that presents non-linear behaviour is modelled by the D-BEM formulation (D: domain) whereas the sub-domain that behaves elastically is modelled by the TD-BEM formulation (TD, time-domain). The solution of the problem is obtained independently in each sub-domain and the variables at common interfaces are computed iteratively. Two examples are presented, in order to verify the potentialities of the proposed methodology. (C) 2005 Elsevier Ltd. All rights reserved.