Unpublished conference/Abstract (Scientific congresses and symposiums)
Prediction of intra- and inter-laminar failure of laminates using non-local damage-enhanced mean-field homogenization simulations
Wu, Ling; Sket, Federico; Adam, Laurent et al.
2016ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering
 

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Keywords :
Homegenization; Composite materials; Damage; LIMARC; CECI
Abstract :
[en] The failure of carbon fiber reinforced composites with a quasi-isotropic sequence ([90/45/-45/90/0]S) and open-hole geometry is studied using a multiscale method [1]. On the one hand, the intra-laminar failure is captured using a damage-enhanced mean-field homogenization scheme. To this end, each ply is modeled as a homogenized material whose anisotropic damage behavior is captured from the homogenization method [2]. In order to avoid the problem of loss of solution uniqueness the mean-field homogenization process is formulated in the context of the non-local continuum damage theory [3]. On the other hand, an hybrid discontinuous Galerkin/extrinsic cohesive law method is used to model the delamination process at the ply interfaces. This hybrid method avoids the need to propagate topological changes in the mesh with the propagation of the delamination while it preserves the consistency and stability in the un-cracked interfaces. As a result, the multiscale framework allows predicting damage propagation directions in each ply along the fiber directions accordingly to the experimental results as it is demonstrated by considering an openhole [90/45/-45/90/0]S-laminate studied both numerically and experimentally. [1] L. Wu, et al., Composite Struct., 126, 246–264, 2015. [2] L. Wu, L. Noels, L. Adam, I. Doghri, Int. J. of Solids and Struct., 50, 3843-3860, 2013. [3] R. Peerlings, et al., Int. J. for Numer. Meth. in Eng., 39, 3391-3403, 1996
Disciplines :
Materials science & engineering
Mechanical engineering
Author, co-author :
Wu, Ling ;  Université de Liège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Sket, Federico;  IMDEA Materials Institute
Adam, Laurent;  e-Xstream Engineering SA
Doghri, Issam;  Université Catholique de Louvain - UCL
Noels, Ludovic  ;  Université de Liège > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3)
Language :
English
Title :
Prediction of intra- and inter-laminar failure of laminates using non-local damage-enhanced mean-field homogenization simulations
Publication date :
08 June 2016
Event name :
ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering
Event organizer :
ECCOMAS
Event place :
Crete Island, Greece
Event date :
5 - 10 June, 2016
Audience :
International
Tags :
CÉCI : Consortium des Équipements de Calcul Intensif
Name of the research project :
STOMMMAC The research has been funded by the Walloon Region under the agreement no 1410246-STOMMMAC (CT-INT 2013-03-28) in the context of M-ERA.NET Joint Call 2014. ;SIMUCOMP The research has been funded by the Walloon Region under the agreement no 1017232 (CT-EUC 2010-10-12) in the context of the ERA-NET +, Matera + framework.
Funders :
Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06
CÉCI - Consortium des Équipements de Calcul Intensif [BE]
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