Analysis of damage in composite laminates under high velocity impact by projectiles of diferent shapes

被引：0
作者：
Gu, Xing-Jin [1 ]
Xu, Xi-Wu [1 ]
机构：
[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
来源：
Gongcheng Lixue/Engineering Mechanics | 2013年 / 30卷 / 01期
关键词：
Composite materials; Constitutive models; Damage; Impact; Numerical analysis;
D O I：
10.6052/j.issn.1000-4750.2011.06.0355
中图分类号：
学科分类号：
摘要：
According to the macrostructure and microstructure of the composite laminates, a rate-dependent constitutive model was developed based on the assumption that the fibre is linear-elastic and the matrix is visco-elastic. On this foundation, a 3D-Hashin failure criteria was selected to identify the in-plane damage of composite laminates by replacing quasi-static strength properties with rate-dependent strength properties, and the cohesive element was involved to simulate the delamination of the composite laminates under a high velocity impact. By using a nonlinear finite element method, a numerical analytical model was presented to predict damage in composite laminates under a high velocity impact. By adopting this model, the ballistic performance and damage characteristics of composites laminates impacted by projectiles with different shapes were studied deeply. Some valuable conclusions were obtained.
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收藏
页码：432 / 440
页数：8
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