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.

中文翻译：

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基于离散误差范围的多保真自适应克里格元模型

本文提出了一种通过在不同网格上进行有限元计算来构建多保真克里金元模型的方法，以用于结构可靠性评估。所提出的方法利用了离散化误差的界限的计算，这使得能够保证性能函数的每次计算的状态（安全或失败）。提供了一种从不同保真度级别构建元模型并估计失败概率的算法。给出了关于二维机械裂纹开口问题的图示。失效概率的界限也被后处理。