Notched strength evaluation of fabric laminates having a circular hole

被引：4
|
作者：
Potti, PKG [1 ]
Rao, BN
Srivastava, VK
机构：
[1] Vikram Sarabhai Space Ctr, Composites Grp, Trivandrum 695013, Kerala, India
[2] Vikram Sarabhai Space Ctr, Struct Engn Grp, Trivandrum 695022, Kerala, India
[3] Banaras Hindu Univ, Inst Technol, Dept Mech Engn, Varanasi 221005, Uttar Pradesh, India
来源：
ADVANCED COMPOSITE MATERIALS | 2000年 / 9卷 / 01期
关键词：
notched strength; fabric laminates; circular hole; point stress criterion; average stress criterion; characteristic lengths; critical stress intensity factor;
D O I：
10.1163/156855100300132965
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
modifications are suggested in the Whitney-Nuismer (WN) two stress fracture criteria known as the point stress criterion and average stress criterion for evaluating the notched strength of composite laminates having a circular hole. The linear relationship between the asymptotic value of the center cracked tension plate stress intensity factor and the notched strength of the infinite plate is used for the evaluation of the characteristic lengths to evaluate the notched strength of laminates. The analytical results based on the modified WN fracture models are compared well with the existing test results of fabric laminates of E-glass/epoxy.
引用
收藏
页码：47 / 58
页数：12
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