Local/global non-intrusive parallel coupling for large scale mechanical analysis

Mickaël Duval (1) , Jean-Charles Passieux (1) , Michel Salaün (1) , Stéphane Guinard (2)

1 ICA - Institut Clément Ader
2 Airbus [France]

The permanent increase in available computing resources can achieve more and more ambitious numerical simulations (most of the time using the finite element method). When dealing with non-linear 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 take into account local modifiations 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 non-linear 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.

Mots clés: X-FEM; Multi-scale; Coupling Algorithms; MPI; Finite Element Method

Domaines: Analyse numérique [cs.NA]

Mickaël Duval, Jean-Charles Passieux, Michel Salaün, Stéphane Guinard. Local/global non-intrusive parallel coupling for large scale mechanical analysis. 11th World Congress on Computational Mechanics - 5th European Conference on Computational Mechanics. IACM-ECCOMAS, Jul 2014, Barcelone, Spain. pp.0. ⟨hal-01851551⟩