ORBi: Wu Ling - A multiscale mean-field homogenization method for fiber-reinforced composites with gradient-enhanced damage models

Reference : A multiscale mean-field homogenization method for fiber-reinforced composites with gradi...


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/2268/116951

Title :	A multiscale mean-field homogenization method for fiber-reinforced composites with gradient-enhanced damage models
Language :	English
Author, co-author :	Wu, Ling [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures >]
	Noels, Ludovic [Université de Liège - ULg > Département d'aérospatiale et mécanique > Computational & Multiscale Mechanics of Materials (CM3) >]
	Adam, L [e-Xstream SA > > > >]
	Doghri, Issam [Université Catholique de Louvain - UCL > iMMC > > >]
Publication date :	2012
Journal title :	Computer Methods in Applied Mechanics & Engineering
Publisher :	Elsevier Science
Volume :	233-236
Pages :	164–179
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	0045-7825
City :	Lausanne
Country :	Switzerland
Keywords :	[en] Finite elements ; Gradient-enhanced ; Mean-Field Homogenization ; Fiber-reinforced materials ; Composite
Abstract :	[en] In this work, a gradient-enhanced homogenization procedure is proposed for fiber reinforced materials. In this approach, the fiber is assumed to remain linear elastic while the matrix material is modeled as elasto-plastic coupled with a damage law described by a non-local constitutive model. Toward this end, the mean-field homogenization is based on the knowledge of the macroscopic deformation tensors, internal variables and their gradients, which are applied to a micro-structural representative volume element (RVE). The macro-stress is then obtained from a homogenization procedure. The methodology holds for 2-phase composites with moderate fiber volume ratios, and for which, at the RVE size, the matrix can be considered as homogeneous isotropic and the ellipsoidal fibers can be considered as homogeneous transversely isotropic. Under these assumptions, the method is successfully applied to simulate the damage process occurring in unidirectional carbon-fiber reinforced epoxy composites submitted to different loading conditions.
Funders :	The research has been funded by the Walloon Region under the agreement SIMUCOMP no 1017232 (CT-EUC 2010-10-12) in the context of the ERA-NET +, Matera + framework.
Name of the research project :	SIMUCOMP no 1017232 (CT-EUC 2010-10-12)
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/116951
DOI :	10.1016/j.cma.2012.04.011
Other URL :	http://dx.doi.org/10.1016/j.cma.2012.04.011
Mentions required by the publisher for OA :	NOTICE: this is the author’s version of a work that was accepted for publication in Computer Methods in Applied Mechanics and Engineering. 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 Computer Methods in Applied Mechanics and Engineering, Vol. 233-236, pages 164 - 179, 2012, DOI: 10.1016/j.cma.2012.04.011

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Open access	2012_CMAME_MFH.pdf	Computer Methods in Applied Mechanics and Engineering, Vol. 233-236, pages 164 - 179, 2012	Author postprint	1.42 MB	View/Open

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Open access	2011_ACOMEN_MFH-b.pdf	ACOMEN2011	-	706.29 kB	View/Open

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