期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 63, 期 -, 页码 110-122出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2014.04.002
关键词
Laminates; Stress concentrations; Analytical modelling; Mechanical testing
资金
- Airbus
- Fundacao para a Ciencia e a Tecnologia [SFRH/BD/88593/2012, FCT-DFRH-SFRH-BPD-78104-2011]
- Ciencia
- Fundação para a Ciência e a Tecnologia [SFRH/BD/88593/2012] Funding Source: FCT
The residual strength of thin-ply non-crimp fabric laminates with large through-the-thickness cracks is investigated in this paper. Analysis methods such as the linear elastic fracture mechanics, inherent flaw, point-stress, average-stress and Finite Fracture Mechanics are used to predict large damage capability. Experiments show that thin-ply non-crimp fabric laminates exhibit high resistance to propagation of large cracks and a remarked crack-bridging effect. Due to the unsuitability of existing models to capture such bridging processes, large damage capability is systematically underestimated by the traditional analysis methods. By taking into account the R-curve of the material in the Finite Fracture Mechanics analysis good predictions of the notched response of laminated plates with large through-penetration damage are obtained using only independently measured material properties; in addition, the Finite Fracture Mechanics model does not require fitting parameters or complex finite element analyses. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据