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Communication Dans Un Congrès Année : 2006

Explicit time stepping for the eXtended Finite Element Method (X-FEM)

Résumé

This paper focuses on the introduction of a lumped mass matrix for enriched elements, which enables one to use a pure explicit formulation in X‐FEM applications. A proof of stability for the 1D and 2D cases is given. We show that if one uses this technique, the critical time step does not tend to zero as the support of the discontinuity reaches the boundaries of the elements. We also show that the X‐FEM element's critical time step is of the same order as that of the corresponding element without extended degrees of freedom.

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hal-00506888 , version 1 (29-07-2010)

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Thomas Menouillard, Julien Réthoré, Alain Combescure. Explicit time stepping for the eXtended Finite Element Method (X-FEM). 7th World Congress on Computational Mechanics, Jul 2006, New York, United States. ⟨10.1002/nme.1718⟩. ⟨hal-00506888⟩
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