Multiscale finite element analysis of mode I delamination growth in a fabric composite

被引:15
|
作者
Yamanaka, Tadayoshi [1 ]
Ghiasi, Hossein [1 ]
Heidari-Rarani, Mohammad [2 ]
Lessard, Larry [1 ]
Feret, Victor [1 ]
Hubert, Pascal [1 ]
机构
[1] McGill Univ, Dept Mech Engn, Montreal, PQ H3A 2K6, Canada
[2] Univ Isfahan, Dept Mech Engn, Fac Engn, Esfahan 8174673441, Iran
关键词
Delamination; Multiscale modeling; Finite element analysis (FEA); Fabrics/textiles; BOUNDARY-CONDITIONS; TEXTILE COMPOSITES; REINFORCED COMPOSITES; WEAVE COMPOSITE; DAMAGE; MESOSCALE; PLAIN; 2D;
D O I
10.1016/j.compstruct.2015.07.094
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Mode I delamination of a five harness satin weave carbon fibre composite and the corresponding toughening mechanisms are studied using a multiscale finite element model of delamination growth in a double cantilever beam (DCB) specimen. The toughening mechanisms related to the fabric structure are studied by embedding a meso-scale model of the fibre architecture in the delamination zone into a macro-scale model of a DCB specimen. The R-curves and the load displacement curves obtained from this analysis agree with the lower bound of the experimental results. The analysis identified two major toughening mechanisms: the inter-yarn locking ahead of the delamination front causing stress relaxation and the formation of sub-surfaces. Contribution of each toughening mechanism towards total delamination toughness is quantitatively evaluated, identifying the inter-yarn locking as the main source of toughening in mode I delamination of fabric composites. Video abstract: Multimedia 1 shows the different stages of the mode I delamination growth in a 5HS composite DCB specimen and its corresponding load displacement curve. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:157 / 165
页数:9
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