Discontinuous Galerkin method applied to fragmentation of heterogeneous materials

Since it generates a multitude of interacting cracks, the computational modeling of fragmentation requires special attention. The discontinuous Galerkin formulation provides an efficient scalable framework to simulate non-linear dynamics of spatially discontinuous structures. Cracks can initiate at any element boundary and evolve driven by a cohesive law. A DG-cohesive weak formulation is derived, implemented into a parallel finite element code, and applied to the fragmentation of a three-dimensional plate submitted to biaxial tension.


Presented at:
9e COLLOQUE NATIONAL EN CALCUL DES STRUCTURES, Giens,France, May 25-29, 2009
Year:
2009
Keywords:
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 Record created 2010-11-18, last modified 2018-03-17

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