A novel class of thermodynamically consistent isotropic hardening rules for some damage models at finite strains |
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| Authors: | Christian Fell Bernhard Eidel |
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| Institution: | Institute for Materials and Mechanics in Civil Engineering, University of Darmstadt, Germany |
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| Abstract: | 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) |
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