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Integrated Physical-Constitutive Computational Framework for Plastic Deformation Modeling

Institute of Materials Science and Technology, TU Wien, Getreidemarkt 9, 1060 Vienna, Austria
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Metals 2020, 10(7), 869; https://doi.org/10.3390/met10070869
Received: 31 March 2020 / Revised: 25 June 2020 / Accepted: 26 June 2020 / Published: 30 June 2020
(This article belongs to the Special Issue The Behaviours of Alloys under Thermo-Mechanical Treatment)
An integrated framework for deformation modeling has been developed, which combines a physical state parameter-based formulation for microstructure evolution during plastic deformation processes with constitutive creep models of polycrystalline materials. The implementations of power law, Coble, Nabarro–Herring and Harper–Dorn creep and grain boundary sliding are described and their contributions to the entire stress response at a virtual applied strain rate are discussed. The present framework simultaneously allows calculating the plastic deformation under prescribed strain rate or constant stress, as well as stress relaxation after preceding stress or strain loading. The framework is successfully applied for the construction of deformation mechanism maps. View Full-Text
Keywords: creep; dislocations; microstructure; relaxation creep; dislocations; microstructure; relaxation
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Viernstein, B.; Kozeschnik, E. Integrated Physical-Constitutive Computational Framework for Plastic Deformation Modeling. Metals 2020, 10, 869.

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