Fracture toughness and bridging law of 3D woven composites

被引：0
|
作者：
Tamuzs, V [1 ]
Tarasovs, S [1 ]
机构：
[1] Latvian State Univ, Inst Polymer Mech, LV-1063 Riga, Latvia
来源：
FRACTURE OF POLYMERS, COMPOSITES AND ADHESIVES II | 2003年 / 32卷
关键词：
fracture toughness; delamination; 3D composite; bridging law; crack opening displacement;
D O I：
10.1016/S1566-1369(03)80121-8
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In the paper, the methodology of measuring G(1c) by using DCB specimens in the presence of large-scale bridging is adapted for investigating the delamination in 3D woven composites. The main novelties introduced in the DCB testing concern a) the loading device, b) the specimen geometry, c) the measurement scheme, and d) the determination of G(1c) and the bridging law from experimental data. The geometry-independent material characteristic G(1c) as a function of the initial crack opening displacement (ICOD) is introduced. Typical values of the delamination fracture toughness of 3D glass and carbon composites are presented.
引用
收藏
页码：515 / 524
页数：10
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