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Communication Dans Un Congrès Année : 2016

A micromechanical damage model for initially anisotropic materials

Résumé

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.
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Dates et versions

hal-03659485 , version 1 (05-05-2022)

Identifiants

  • HAL Id : hal-03659485 , version 1
  • OATAO : 17671

Citer

Hélène Welemane, Cristina Goidescu, Vincent Pensée, Djimédo Kondo. A micromechanical damage model for initially anisotropic materials. 24th International Congress of Theoretical and Applied Mechanics ICTAM 2016, Aug 2016, Montreal, Canada. pp.1840-1841. ⟨hal-03659485⟩
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