ORBi: Wu Ling - Non-local Damage-Enhanced MFH for Multiscale Simulations of Composites

Reference : Non-local Damage-Enhanced MFH for Multiscale Simulations of Composites


	Document type :	Parts of books : Contribution to collective works
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering Engineering, computing & technology : Materials science & engineering Engineering, computing & technology : Aerospace & aeronautics engineering
	To cite this reference:	http://hdl.handle.net/2268/128285

Title :	Non-local Damage-Enhanced MFH for Multiscale Simulations of Composites
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, Laurent [e-Xstream SA > > > >]
	Doghri, Issam [Université Catholique de Louvain - UCL > > > >]
Publication date :	2013
Main document title :	Composite Materials and Joining Technologies for Composites, Volume 7
Editor :	Patterson, Eann
	Backman, David
	Cloud, Gary
Publisher :	Springer
Collection and collection volume :	Conference Proceedings of the Society for Experimental Mechanics Series, Vol. 44
Pages :	pages 115-121
ISBN :	978-1-4614-4552-4
Keywords :	[en] Mean-Field Homogenization ; non-local ; composites ; damage ; anisotropy
Abstract :	[en] In this work, a gradient-enhanced mean-field homogenization (MFH) procedure is proposed for fiber reinforced materials. In this approach, the fibers are assumed to remain linear elastic while the matrix material obeys an elasto-plastic behavior enhanced by a damage model. As classical finite element simulations face the problems of losing uniqueness and strain localization when strain softening of materials is involved, we develop the mean-field homogenization in a non-local way. Toward this end we use the so-called non-local implicit approach, reformulated in an anisotropic way to describe the damage in the matrix. As a result we have a multi-scale model that can be used to study the damage process at the meso-scale, and in particular the damaging of plies in a composite stack, in an efficient comput0ational way. As a demonstration a stack with a hole is studied and it is shown that the model predicts the damaging process in bands oriented with the fiber directions.
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)
Permalink :	http://hdl.handle.net/2268/128285
DOI :	10.1007/978-1-4614-4553-1_13
Other URL :	http://rd.springer.com/chapter/10.1007/978-1-4614-4553-1_13

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