Tensile strength of UD-composite laminates with multiple holes

被引：18
|
作者：
Kazemahvazi, S. [1 ]
Kiele, J. [1 ]
Zenkert, D. [1 ]
机构：
[1] KTH, Dept Aeronaut & Vehicle Engn, S-10405 Stockholm, Sweden
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 08期
关键词：
Glass fibres; Strength; Notch; Multiple holes; FIBER-COMPOSITES; ELLIPTIC HOLES; DAMAGE;
D O I：
10.1016/j.compscitech.2010.04.005
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The residual strength of glass fibre reinforced vinyl-ester laminates with multiple holes was investigated through an experimental programme. Different types of structured hole patterns and hole densities were investigated and analysed using digital image correlation strain measuring technique. Three different failure modes could be observed when the hole patterns and the hole densities were a altered. These three failure modes were used as the foundation for a simple yet effective analytical model in order to predict the residual strength of damaged composite specimens. Finally, a number of laminates with randomly distributed holes were tested experimentally. The analytical model can predict the failure mode and failure strength of the experiments with sufficiently good fidelity. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1280 / 1287
页数：8
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