Body-fitted finite element discretization for moving interfaces in context of microstructure evolutions.

Sebastian Florez (1) , Modesar Shakoor (1) , Thomas Toulorge (1) , Marc Bernacki (1)

1 CEMEF - Centre de Mise en Forme des Matériaux

The Level-set (LS) method [1] is used to model dynamic interfaces in the context of largedeformations. This approach is used in simulations of microstructural evolutions [2–10] using a FiniteElement (FE) framework where the interfaces are implicitly defined and captured by a refined mesh.This process can be very costly in terms of CPU-time and the presence of vacuum regions is inevitable.A new approach to discretize the interfaces given by the LS fields, which enables to treat these voids andto maintain the same accuracy with a reduced CPU-time will be presented.Mots clés— Body-fitted, Moving Interfaces, Remeshing, Finite Element Method, Level-Set.

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Sebastian Florez, Modesar Shakoor, Thomas Toulorge, Marc Bernacki. Body-fitted finite element discretization for moving interfaces in context of microstructure evolutions.. CSMA 2019, 14ème Colloque National en Calcul des Structures, May 2019, Giens, France. ⟨hal-02417681⟩