Reference : Optimization of elastic properties and weaving patterns of woven composites

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering Engineering, computing & technology : Civil engineering
	Focus Areas :	Computational Sciences
	To cite this reference:	http://hdl.handle.net/10993/12009

Title :	Optimization of elastic properties and weaving patterns of woven composites
Language :	English
Author, co-author :	Abu Bakar, Ilyani Akmar [Faculty of Civil Engineering, MARA University of Technology, 40450 Shah Alam, Selangor, Malaysia, Institute of Structural Mechanics, Bauhaus University of Weimar, Marienstrasse 15, 99423 Weimar, Germany]
	Kramer, Oliver [Department of Computer Science, University of Oldenburg, 26111 Oldenburg, Germany]
	Bordas, Stéphane [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Rabczuk, Timon [Institute of Structural Mechanics, Bauhaus University of Weimar, Marienstrasse 15, 99423 Weimar, Germany]
Publication date :	Jun-2013
Journal title :	Composite Structures
Publisher :	Elsevier Science
Volume :	100
Pages :	575-591
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	0263-8223
Keywords :	[en] Elastic properties ; Finite element method ; Geometric characteristics ; Periodic boundary conditions ; Woven fabric composite unit cells ; Effective elastic property ; Fiber volume fractions ; Finite element simulations ; Unit cells ; Woven fabric composites ; Boundary conditions ; Cells ; Cytology ; Evolutionary algorithms ; Optimization ; Weaving ; Wool ; Yarn ; Elasticity
Abstract :	[en] Predictions of geometric characteristics and elastic properties of patterns in woven fabric composites are proposed based on unit cells. This study addresses the optimization of the elastic properties within woven fabric composite unit cells with multiple designs based on periodic boundary conditions and evolutionary algorithms. Furthermore, the study permits a reliable prediction of mechanical behavior of woven fabric composites unit cells in which the weave patterns are the variables. The models are treated as a single-ply for each weave pattern embedded in a matrix pocket. The analyzed weave patterns are created by TexGen, the simulation is done with ABAQUS. At the unit cell level, effective elastic properties of the yarn were estimated from Finite Element (FE) simulations using periodic boundary conditions. An evolutionary algorithm is adopted in optimizing the elastic properties of woven fabric composites with recombination and mutation operators. We present a parameter study to investigate the effect of various geometric parameters. Those parameters include the gap length, the shape of the yarn section, the yarn thickness, the constituent materials, the fiber volume fraction and the elastic properties. By examining this optimized model through the pre-determined parameters as mentioned above, an optimal parameter set for composite's performance can be properly selected. © 2013 Elsevier Ltd.
Target :	Researchers ; Professionals ; Students ; General public ; Others
Permalink :	http://hdl.handle.net/10993/12009
	also: http://hdl.handle.net/10993/12379
DOI :	10.1016/j.compstruct.2012.12.043
Framework Programme / European Project :	FP7 ; 279578 - REALTCUT - Towards real time multiscale simulation of cutting in non-linear materials with applications to surgical simulation and computer guided surgery

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