Abstract
AbstractThe aim of this work is thermomechanically coupled simulation and modeling of material behavior and microstructural evolutions during metal forming processes such as extrusion. The material model is implemented as an UMAT in the Finite Element (FE) software ABAQUS. The microstructre parameters such as subgrain size, misorientation and dislocation density are considered as internal state variables. Some of the results of the applied model are presented. The simulation results are in good agreement with experimental observations. (© 2009 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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