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A novel class of thermodynamically consistent isotropic hardening rules for some damage models at finite strains
Author(s) -
Fell Christian,
Eidel Bernhard
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200700406
Subject(s) - isotropy , hardening (computing) , plasticity , class (philosophy) , mathematics , materials science , statistical physics , thermodynamics , computer science , physics , artificial intelligence , composite material , layer (electronics) , quantum mechanics
This paper proposes isotropic hardening rules for plasticity damage models which satisfy the 2nd law of thermodynamics. Here, the Gurson ‐model modified by Tvergaard/Needleman is used as a prototype model for finite strains to discuss main properties of the novel hardening rules. Additionally it is shown that thermodynamically consistent rules are suitable to fit experimental data. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)