Article (Scientific journals)
Bending effect on the risk for delamination at the reinforcement/matrix interface of 3D woven fabric composite using a shell-like RVE
Piezel, B.; Mercatoris, Benoît; Trabelsi, W. et al.
2012In Composite Structures, 94 (8), p. 2343-2357
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Keywords :
Computational homogenisation; Debonding; Delamination; Non-linear flexural behaviour; Thermoplastic yarns; Woven composite; Bending effect; Delamination failure; Flexural effects; Flexural loading; Homogenisation; Interface stress; Out-of-plane; Reinforcement cracking; Stress component; Tangential stress; Textile-reinforced composites; Thickness direction; Composite materials; Loading; Reinforcement; Stress analysis; Three dimensional; Weaving
Abstract :
[en] This paper presents a computational homogenisation-based technique for flexural effects in textile reinforced composite planar shells. An homogenisation procedure is used for the in-plane and the out-of-plane behaviour of three-dimensional woven composite shells, taking the in-plane periodicity of the material into account while relaxing any periodicity tying in the thickness direction. Several types of damage (matrix or reinforcement cracking, delamination, ...) can appear in a composite material. In this paper, material non-linear computations are used to assess the importance of bending on the risk for delamination at the reinforcement/matrix interface. The normal and tangential stresses at the interface are computed and a simplified criterion for delamination is used for this purpose. The effect of flexural loading on the stress components responsible for a potential delamination failure mode at the interface is analysed. The values of interface stresses obtained by means of flexural homogenisation are compared with 3D homogenisation results using periodicity constraints along the thickness direction, and compared qualitatively with experimental facts available from the literature. The importance for taking flexural effects into account properly is emphasised. © 2012 Elsevier Ltd.
Disciplines :
Mechanical engineering
Materials science & engineering
Author, co-author :
Piezel, B.;  Building, Architecture and Town Planning Department, CP 194/2, Université Libre de Bruxelles (ULB), Av. F.-D. Roosevelt 50, 1050 Brussels, Belgium
Mercatoris, Benoît  ;  Université Libre de Bruxelles - ULB > Building, Architecture and Town Planning Dept.
Trabelsi, W.;  MINES ParisTech, Centre des Matériaux, CNRS UMR 7633, BP 87, 91003 Evry Cedex, France
Laiarinandrasana, L.;  MINES ParisTech, Centre des Matériaux, CNRS UMR 7633, BP 87, 91003 Evry Cedex, France
Thionnet, A.;  MINES ParisTech, Centre des Matériaux, CNRS UMR 7633, BP 87, 91003 Evry Cedex, France, Université de Bourgogne, Mirande, BP 47870, 21078 Dijon, France
Massart, T. J.;  Building, Architecture and Town Planning Department, CP 194/2, Université Libre de Bruxelles (ULB), Av. F.-D. Roosevelt 50, 1050 Brussels, Belgium, McGill University, Montreal, Canada
Language :
English
Title :
Bending effect on the risk for delamination at the reinforcement/matrix interface of 3D woven fabric composite using a shell-like RVE
Publication date :
2012
Journal title :
Composite Structures
ISSN :
0263-8223
eISSN :
1879-1085
Publisher :
Elsevier, Netherlands
Volume :
94
Issue :
8
Pages :
2343-2357
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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