Multifidelity adaptive kriging metamodel based on discretization error bounds |
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Authors: | L Mell V Rey F Schoefs |
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Affiliation: | GeM-Institut de Recherche en Génie Civil et Mécanique-UMR 6183-CNRS- Université de Nantes, Ecole Centrale de Nantes Nantes- 2, Nantes, France |
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Abstract: | This article presents an approach to build a multifidelity kriging metamodel from finite element computations on different meshes for stuctural reliability assessment. The proposed method takes advantage of the computation of bounds on the discretization error, which enables to guarantee the state (safe or failure) of each computation of the performance function. An algorithm to build the metamodel from the different levels of fidelity and estimate the failure probability is provided. Illustrations are presented on a two dimensional mechanical crack opening problem. Bounds on the failure probability are also post-processed. |
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Keywords: | error estimation finite element method kriging methods probability of failure reliability analysis |
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