Domain tying across virtual interfaces : coupling X-FEM with the Mortar method

Autor: Akula, Basava-Raju, Yastrebov, Vladislav, Vignollet, Julien, Cailletaud, Georges
Přispěvatelé: Centre des Matériaux (MAT), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Safran Tech, Université Paris-Saclay
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: 13e colloque national en calcul des structures
13e colloque national en calcul des structures, Université Paris-Saclay, May 2017, Giens, Var, France
Popis: International audience; In this paper we propose a unified framework of the mortar domain decomposition method and extended finite element method (X-FEM). This framework allows to deal in an efficient manner with two cumbersome aspects of the finite element methods, namely incompatible interface discretizations and internal discontinuities. Features of mortar methods in the context of mesh tying, and of X-FEM in the context of void/inclusion treatment are exploited to formulate the weak coupling along an inclusion's surface and the virtual surface of the host mesh. It has a potential to address a multitude of problems from accurate substructuring to efficient wear simulation in contact problems.
Databáze: OpenAIRE