JEBAHI, Mohamed; CHARLES, Jean Luc; DAU, Frederic; ILLOUL, Lounes; IORDANOFF, Ivan

doi:10.1016/j.cma.2012.11.021

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3D coupling approach between discrete and continuum models for dynamic simulations (DEM-CNEM). 2013-03-01, vol. 255, p. 196-209

Résumé en anglais

The coupling between two dissimilar numerical methods presents a major challenge, especially in case of discrete-continuum coupling. The Arlequin approach provides a flexible framework and presents several advantages in comparison to alternative approaches. Many studies have analyzed, in statics, the ingredients of this approach in 1D configurations under several particular conditions. The present study extends the Arlequin parameter studies to incorporate a dynamic behavior using 3D models. Based on these studies, a new 3D coupling method adapted for dynamic simulations is developed. This method couples two 3D codes: DEM-based code and CNEM-based code. The 3D coupling method was applied to several reference dynamics tests. Good results are obtained using this method, compared with the analytical and numerical results of both DEM and CNEM.< Réduire

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Multiscale method

Coupling method

Discrete element method

Natural element method

Arlequin approach

Dynamic simulation

DEM

CNEM

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3D oupling approa h between dis rete and ontinuum models for dynami simulations (DEM-CNEM)

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