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Non-Intrusive model coupling: A flexible way to handle local geometric and mechanical details in FEA

Abstract : Computer Aided Engineering (CAE) often involves structural mechanics analysis (most of the time using the finite element method). When dealing with nonlinear complex models on large 3D structures, the computational cost becomes prohibitive. In this paper, we present the recent developments linked to an innovative computing method: non-intrusive coupling. Such a method allows to efficiently taking into account local modifications on an initial existing model in a non-intrusive way: the previously computed analysis is left unchanged. Large scale linear models can thus be easily computed, then localised nonlinear complex models can be used to pinpoint the analysis where required on the structure. After a presentation of the scientific context and a description of non-intrusive coupling methods, we will present its application to crack growth simulation and parallel structure analysis.
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Submitted on : Monday, July 23, 2018 - 3:28:09 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:55 PM
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  • HAL Id : hal-01847447, version 1
  • OATAO : 11435

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Mickaël Duval, Jean-Charles Passieux, Michel Salaün, Stéphane Guinard. Non-Intrusive model coupling: A flexible way to handle local geometric and mechanical details in FEA. Joint conference on Mechanical, Design Engineering & Advanced Manufacturing, Jun 2014, Toulouse, France. pp.1-6. ⟨hal-01847447⟩

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