Original title: Use of advanced kinematic hardening rules for prediction of multiaxial ratcheting
Authors: Klepač, Vilém ; Parma, Slavomír ; Feigenbaum, H. P. ; Marek, René ; Plešek, Jiří ; Svárovský, Jiří
Document type: Papers
Conference/Event: Computational Mechanics 2021 /36./, Srní (CZ), 20211108
Year: 2021
Language: eng
Abstract: The cumulation of plastic deformation due to cyclic loading, so called ratcheting, is considered as critical process for purpose of simulation. For this reason, many of advanced models of plasticity have been developed to capture the evolution of material during the load reversals. Historically, these models are based on concept of multicomponent back-stress, that provides the prediction of phenomenon of kinematic hardening (KH) [Chaboche 1979]. The key for accurate prediction is, besides well designed model, identification of model parameters. To present results on prediction of multiaxial ratcheting by FEA, the multicomponent Armstrong-Frederick with a threshold with r Modification was implemented via the UMAT interface of Abaqus Standart. Model parameters were identified on experimental data presented in [Hassan, Kyriakides 1992] and [Hassan et. al. 1992]. To prove the performance of the model subroutine, other numerical examples will be presented and their computational costs will be discussed.
Keywords: low-cycle fatigue; plasticity; ratcheting
Host item entry: Computational mechanics 2021. Proceedings of computational mechanics 2021, ISBN 978-80-261-1059-0
Note: Související webová stránka: https://www.kme.zcu.cz/compmech/info_sborniky.php

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0327003

Permalink: http://www.nusl.cz/ntk/nusl-508410


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