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Definitions of the failure surface, as well as evolution of yield surface are crucial elements in nonlinear FEM analysis of reinforced concrete members and structures carried out with use of elasto-plastic material model. Procedure of formation of these surfaces in MWW3 material model used in author’s computational system Mafem3D has been described. In MWW3 model, each meridian section of yield section...
The elasto-plastic model for concrete is presented in the paper. Though huge number of such models was developed in recent years and even more advanced approach is popular at present, elasto-plasticity still can be useful in structural analysis domain due to explicit physical meaning of material parameters, which can be easily determined on the basis of laboratory tests. Simple implementation in computational...
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