Abstract
A mixed/hybrid FE formulation for the solution of elasto-viscoplastic problems under dynamic loading conditions is presented. The constitutive equations under considerations are those of Chaboche. The spatially semi-discretized system of ordinary differential equations is numerically integrated in time by means of a midpoint type algorithm. A layer-model is developed which enables the application of the proposed methods in shell or plate theory. Numerical examples demonstrate the efficiency of the proposed method.
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