Implicit integration scheme and its consistent linearization for an elastoplastic-damage model with application to concrete

A two-phase coupled elastoplastic-damage model proposed by Ortiz (Ortiz M. Mechanics of Materials 1985;4:67-93) for modeling inelastic behavior of con crete is considered. For integration of anisotropic damage evolution equati ons an implicit integration scheme is proposed and the resulting nonlinear equations, both on the constitutive level and the finite element equilibriu m level, are solved based on consistent linearization. The algorithm is imp lemented on a parallel computer. A numerical test for a concrete console de monstrates the efficiency of the developed algorithm. (C) 2000 Elsevier Sci ence Ltd. All rights reserved.