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Prise en compte de l’erreur de discrétisation pour l’estimation de probabilité de défaillance par surface de réponse

Abstract : This paper presents the construction of a multi-fidelity metamodel in the context of safety analysis. A kriging-based meta-model is built from finite element computations for several realizations of random variables.This metamodel is then used to estimate the probability of failure of the mechanical structure. The use of discretization error estimators enables to guarantee the state (failure or safety) of the structure at the design points and to adapt the size of the mesh used for the simulations. We illustrate this approach on a 2D mechanical problem of a cracked plate.
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https://hal.archives-ouvertes.fr/hal-02547570
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Submitted on : Monday, April 20, 2020 - 10:08:00 AM
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L Mell, V Rey, Franck Schoefs. Prise en compte de l’erreur de discrétisation pour l’estimation de probabilité de défaillance par surface de réponse. 24 ème Congrès Français de Mécanique, Aug 2019, Brest, France. ⟨hal-02547570⟩

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