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A micromechanical damage model for initially anisotropic materials

Welemane, Hélène and Goidescu, Cristina and Pensée, Vincent and Kondo, Djimédo A micromechanical damage model for initially anisotropic materials. (2016) In: 24th International Congress of Theoretical and Applied Mechanics ICTAM 2016, 21 August 2016 - 26 August 2016 (Montreal, Canada).

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Official URL: http://www.ictam2016.org/welcome_f.shtml

Abstract

We propose a new model of brittle damage for initially orthotropic materials. The proposed strain energy-based formulation allows to account for the interaction between initial and induced anisotropies and to address the very challenging issue of opening-closure effects (unilateral behaviour). In order to derive the complete model including the damage growth, we take advantage of micromechanical developments suitably combined with the thermodynamics framework of the standard generalized materials. The model has been implemented within the finite-element code ABAQUS and various numerical simulations have been carried out to illustrate its predictive capabilities. In particular, emphasis is put on the evolution of the material symmetry and the influence of microcracks opening-closure states on the damage process.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to ICTAM2016 editor.
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE)
Other partners > Université Paris-Est Marne-La-Vallée - UPEM (FRANCE)
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Deposited By: Helene Welemane
Deposited On:23 May 2017 12:14

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