Fatigue delamination growth rates and thresholds of composite laminates under mixed mode loading

被引：61
|
作者：
Zhang, Jianyu [1 ]
Peng, Lei [1 ,2 ]
Zhao, Libin [3 ]
Fei, Binjun [1 ]
机构：
[1] Beihang Univ BUAA, Inst Solid Mech, Beijing 100191, Peoples R China
[2] Beijing Aeronaut Sci & Technol Res Inst, Beijing 100083, Peoples R China
[3] Beihang Univ BUAA, Sch Astronaut, Beijing 100191, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2012年 / 40卷
基金：
美国国家科学基金会;
关键词：
Composites; Crack growth rate; Fatigue thresholds; R-curve; Fatigue delamination resistance; II INTERLAMINAR FRACTURE; SPECIMENS; TOUGHNESS; FAILURE;
D O I：
10.1016/j.ijfatigue.2012.01.008
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The effect of delamination resistance on fatigue crack growth behavior of composite laminates is studied. The strain energy release rate normalized to fatigue delamination resistance (C) is proposed as a controlling parameter to evaluate the fatigue crack growth rates and thresholds. Compared to previously developed G(cf) determination method, the compliance approach presented in this paper shows obvious advantages, such as no interruption to the fatigue crack growth and independence on the specimen dimensions. Based on this approach, the fatigue delamination growth rates and thresholds of carbon/bismaleimide composite laminates under mixed I/II mode loadings are determined experimentally. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7 / 15
页数：9
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