Fully implicit numerical integration of the Yoshida-Uemori two-surface plasticity model with isotropic hardening stagnation

The paper deals with the numerical investigation and implementation of the two-surface plasticity model (or bounding surface model). This plasticity theory allows to describe the deformation behavior under large strain cyclic plasticity and the material stress-strain responses at small-scale re-yie...

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Auteurs principaux: Riccardo Fincato, Seiichiro Tsutsumi, Alex Zilio, Gianluca Mazzucco, Valentina Salomoni
Format: article
Langue:EN
Publié: Gruppo Italiano Frattura 2021
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Accès en ligne:https://doaj.org/article/23939421333f4cecb9fda65e8f0600bb
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Résumé:The paper deals with the numerical investigation and implementation of the two-surface plasticity model (or bounding surface model). This plasticity theory allows to describe the deformation behavior under large strain cyclic plasticity and the material stress-strain responses at small-scale re-yielding after large pre-straining. A novel strategy to model the isotropic hardening stagnation is developed within a fully implicit integration scheme in order to speed up the computation and to improve the material description.