Procesos Elastoplásticos con Grandes Deformaciones. Modelo Constitutivo y Aplicación a Metales

C. García Garino, J. Oliver


This paper describes a finite strain elastoplastic constitutive model. The general problem is derived in first term and then the case of metals is studied. In this last case the novelty is the introduction a posteriori of the small elastic strain hypothesis. The numerical implementation of the model in a computational code is discussed. A couple of applications are solved, studying a sheet metal forming as well as impact problems

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