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Réduction de modèle et simplification de l'intégration de loi de comportement pour la prévision de la durée de vie

Abstract : The fied of the numerical computation is widely spread in the industrial process for complex systems. From the preliminary design to the manufacturing and the maintenance and overhaul, numerical simulations are many. Instead of intensive computations, reduced order modeling offers efficient alternative methods which aim at reducing the numerical cost of nonlinear problems by projecting the partial differential equations on a reduced basis. Moreover, as the exact description of underlying phenomena leads to complex constitutive laws, a simplification is considered by exploiting a truncated spatial domain over which the problem is considered. The studies carried out aim at providing some developments to the incremental and adaptative A Priori Hyper Reduction method in the field of heterogeneous materials for parametrized analysis. Those theoretical developements were implemented in the finite element code Z-set and used for a set of numerical examples on composite structures.
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https://pastel.archives-ouvertes.fr/pastel-00854149
Contributor : Vivien Courtier <>
Submitted on : Monday, August 26, 2013 - 1:34:49 PM
Last modification on : Friday, April 3, 2020 - 1:59:22 AM
Document(s) archivé(s) le : Thursday, April 6, 2017 - 7:18:19 AM

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  • HAL Id : pastel-00854149, version 1

Citation

Vivien Courtier. Réduction de modèle et simplification de l'intégration de loi de comportement pour la prévision de la durée de vie. Matériaux et structures en mécanique [physics.class-ph]. Ecole Polytechnique X, 2013. Français. ⟨pastel-00854149⟩

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