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Une stratégie de calcul pour l'analyse à l'échelle "micro" des endommagements jusqu'à rupture des composites stratifiés

Abstract : A calculation strategy for the simulation of a complete microscopic model is developed This strategy enables one to account for damage mechanisms in laminated composites. The model mixes discrete and continuous approaches by introducing potential rupture surfaces and a damageable continuous medium. This approach requires suitable calculation tools unavailable in industrial analysis codes. The strategy presented is multiscale in space and is based on a decomposition of the domain into substructures and interfaces. This strategy enables one to simulate complex problems with multiple cracks. In practice, to use such a model, the strategy must be improved in order to handle very large numbers of substructures and interfaces and to estimate the rupture criteria for the surfaces introduced into the model. I provide simple examples which demonstrate the capabilities of the microscopic model.
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https://tel.archives-ouvertes.fr/tel-00254379
Contributor : Ens Cachan Bibliothèque <>
Submitted on : Wednesday, February 13, 2008 - 1:04:13 PM
Last modification on : Friday, October 23, 2020 - 4:49:12 PM
Long-term archiving on: : Friday, September 28, 2012 - 9:35:26 AM

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  • HAL Id : tel-00254379, version 1

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David Violeau. Une stratégie de calcul pour l'analyse à l'échelle "micro" des endommagements jusqu'à rupture des composites stratifiés. Mécanique [physics.med-ph]. École normale supérieure de Cachan - ENS Cachan, 2007. Français. ⟨tel-00254379⟩

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