Abstract
A novel viscoplastic model for concrete and its performance under dynamic loading is presented. The model is based on the so-called viscoplastic consistency model, recently proposed by Wang. The model makes use of the Hoffman yield function in its isotropic form and is augmented to include seperate hardening/softening behaviour in tension and compression. An implicit backward Euler integration scheme is adopted for the integration of the rate equations. The performance of the model is illustrated on a number of numerical examples at the material point level and on the structural level with the cylinder split test.
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