Matrix cracking and delamination in laminated composites. Part I: Ply constitutive law, first ply failure and onset of delamination
Matrix cracking and delamination in laminated composites. Part I: Ply constitutive law, first ply failure and onset of delamination
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DOI：
10.1016/j.mechmat.2010.12.003
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发表时间：
2011-04-01
影响因子：
3.9
通讯作者：
Turon, A.
中科院分区：
文献类型：
--
作者：
Maimi, P.;Camanho, P. P.;Turon, A.
基体开裂和分层是单向铺设纤维增强复合材料制造的先进层合复合材料的主要损伤形式。本文确定了在面内应力状态下，基体裂纹的萌生时间，并分析了基体裂纹促进的脱层。考虑到在面内剪应力作用下，复合材料层合板在宏观裂纹形成之前表现出的非线性响应，提出并实现了层合板塑性损伤模型。模型预测与已公布的实验数据有很好的相关性。(C)2011爱思唯尔有限公司。保留所有权利。
Matrix cracking and delamination are the main initial forms of damage in advanced laminated composites manufactured by stacking unidirectional plies of fiber reinforced polymers. In this paper, the onset of matrix cracking is determined for in-plane stress states; in addition, delamination promoted by matrix cracks is analyzed. Taking into account that under in-plane shear stresses composite laminates show a non-linear response prior to the formation of a macro-crack, a plastic-damage model is proposed and implemented. The models predictions correlate well with published experimental data. (C) 2011 Elsevier Ltd. All rights reserved.