A FINITE ELEMENT/GENERALIZED FINITE ELEMENT METHOD CODE-COUPLING FOR LINEAR ELASTIC FRACTURE MECHANICS PROBLEMS
Mohammad Malekan1; Felicio B. Barros1; Roque L. S. Pitangueira1
1 Federal University of Minas Gerais (UFMG)
doi:10.20906/CPS/CILAMCE2015-0439
Resumo
This paper presents a procedure for the coupling of a Generalized Finite Element Method (GFEM) code and a commercial Finite Element (FE) package to solve a linear elastic fracture mechanics problem. The code coupling process consists of a GFEM code embedded into the computational platform INSANE (INteractive Structural ANalysis Environment) with the commercial FE package ABAQUS for coupled FEM/GFEM-analyses. The problem domain is decomposed into two sub-domains: FE domain (safe domain) and GFEM domain (crack domain). Theoretical background information is provided on the GFEM and the stress intensity factors computation. Main steps of the coupling procedure are explained and necessary information is provided. Details of the implementation are presented and important aspects of using this procedure are highlighted in the numerical examples.
Palavras-chave: Generalized Finite Element Method (GFEM); eXtended Finite Element Method (XFEM); Object Oriented Programming (OPP); Code-coupling; Fracture Mechanics