[S02A-06] Implicit numerical integration of the Yoshida-Uemori two-surface plasticity model with isotropic hardening stagnation | 第24回応用力学シンポジウム

第24回応用力学シンポジウム

2021年5月14日〜5月15日オンライン開催

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第24回応用力学シンポジウム

2021年5月14日〜5月15日オンライン開催

[S02A-06]Implicit numerical integration of the Yoshida-Uemori two-surface plasticity model with isotropic hardening stagnation

*Riccardo Fincato¹, Seiichiro Tsutsumi¹, Alex Zilio², Gianluca Mazzucco², Valentina Salomoni²(1. JWRI, Osaka university, 2. DICEA, Padova University)

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The work presented in this paper deals with the numerical investigation and implementation of the two-surface plasticity model (or bounding surface model). This plasticity theory is able to describe the deformation behaviour of large-strain cyclic plasticity and the 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.

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