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Brittle damage in initially anisotropic materials: a model accounting for the induced anisotropy and unilateral effects

Abstract : A new micromechanical modelling approach for brittle damage in initially orthotropic materials is presented. The proposed strain-based energy formulation allows to derive a fully anisotropic multilinear model for microcracked materials with arbitrary oriented defects. The thermodynamics framework provides a standard procedure for the damage evolution law. The new model explicitly accounts for the interaction between primary and induced anisotropies. Moreover, the very challenging issue of opening-closure effects (unilateral behavior) is addressed in this framework.
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https://hal.archives-ouvertes.fr/hal-01212114
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Submitted on : Tuesday, October 6, 2015 - 10:42:17 AM
Last modification on : Thursday, March 21, 2019 - 1:03:27 PM
Long-term archiving on: : Thursday, January 7, 2016 - 10:26:27 AM

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Hélène Welemane, Cristina Goidescu, Djimédo Kondo, Olivier Pantalé, Moussa Karama. Brittle damage in initially anisotropic materials: a model accounting for the induced anisotropy and unilateral effects. Applied Mechanics and Materials, Trans Tech Publications, 2015, vol. 784, pp. 173-178. ⟨10.4028/www.scientific.net/AMM.784.173⟩. ⟨hal-01212114⟩

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