Reference : An XFEM/CZM implementation for massively parallel simulations of composites fracture
Scientific journals : Article
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Materials science & engineering
Engineering, computing & technology : Mechanical engineering
An XFEM/CZM implementation for massively parallel simulations of composites fracture
Vigueras, Guillermo [IMDEA Materials Institute > > > >]
Sket, Federico [IMDEA Materials Institute > > > >]
Samaniego, Cristobal [Barcelona Supercomputing Centre > > > >]
Wu, Ling mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
Noels, Ludovic mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
Tjahjanto, Denny [KTH Royal Institute of Technology > > > >]
Casoni, Eva [Barcelona Supercomputing Centre > > > >]
Houzeaux, Guillaume [Barcelona Supercomputing Centre > > > >]
Makradi, Ahmed [CRP Henri Tudor, Luxembourg-Kirchberg > > > >]
Molina-Aldareguia, Jon M [IMDEA Materials Institute > > > >]
Vazquez, Mariano [Barcelona Supercomputing Centre > > > >]
Jérusalem, Antoine [University of Oxford > > > >]
Composite Structures
Elsevier Science
Yes (verified by ORBi)
[en] Composites ; XFEM ; Cohesive elements ; Failure ; Large scale parallel simulations ; LIMARC
[en] Because of their widely spread use in many industries, composites are the subject of many research campaigns. More particularly, the development of both accurate and flexible numerical models able to capture their intrinsically multiscale modes of failure is still a challenge. The standard finite element method typically requires intensive remeshing to adequately capture the geometry of the cracks and high accuracy is thus often sacrificed in favor of scalability, and vice versa. In an effort to preserve both properties, we present here an extended finite element method (XFEM) for large scale composite fracture simulations. In this formulation, the standard FEM formulation is partially enriched by use of shifted Heaviside functions with special attention paid to the scalability of the scheme. This enrichment technique offers several benefits, since the interpolation property of the standard shape function still
holds at the nodes. Those benefits include (i) no extra boundary condition for the enrichment degree of freedom, and (ii) no need for transition/blending regions; both of which contribute to maintain the scalability of the code. Two different cohesive zone models (CZM) are then adopted to capture the physics of the crack propagation mechanisms. At the intralaminar level, an extrinsic CZM embedded in the XFEM formulation is used. At the interlaminar level, an intrinsic CZM is adopted for predicting the failure. The overall framework is implemented in ALYA, a mechanics code specifically developed for large scale, massively parallel simulations of coupled multi-physics problems. The implementation of both intrinsic and extrinsic CZM models within the code is such that it conserves the extremely efficient scalability of ALYA while providing accurate physical simulations of computationally expensive phenomena. The strong scalability provided by the proposed implementation is demonstrated. The model is ultimately validated against a full experimental campaign of loading tests and X-ray tomography analyses for a chosen very large scale.
Computational & Multiscale Mechanics of Materials
Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06
SIMUCOMP and ERA-NET MATERA+ project financed by the Fonds National de la Recherche (FNR) of Luxembourg, the Consejerıa de Educacion y Empleo of the Comunidad de Madrid, the Walloon region (agreement no 1017232, CT-EUC2010-10-12), and by the European Union’s Seventh Framework Programme (FP7/2007-2013).
NOTICE: this is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, 125, 2015, DOI 10.1016/j.compstruct.2015.01.053
FP7 ; 235303 - MATERA+ - ERA-NET Plus on Materials Research

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