Tensile Performance and Damage Evolution of a 2.5-D C/SiC Composite Characterized by Acoustic Emission

被引：23
|
作者：
Wang, Yiqiang [1 ]
Zhang, Litong [1 ]
Cheng, Laifei [1 ]
Ma, Junqiang [1 ]
Zhang, Weihua [1 ]
机构：
[1] NW Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Shaanxi, Peoples R China
来源：
APPLIED COMPOSITE MATERIALS | 2008年 / 15卷 / 4-6期
关键词：
Mechanical properties; Damage; Acoustic emission; Fiber architecture;
D O I：
10.1007/s10443-008-9066-2
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The tensile behavior of a unique 2.5 D C/SiC composite and associated damage evolution was characterized by means of acoustic emission (AE) technique. The results show that the stress-strain curves exhibit mostly nonlinear behavior, which corresponds well with the AE activities. All the evolutions of damage characteristics indicate the phenomenon of matrix cracking saturation which is in agreement with AE results. Microstructural observations reveal extensive matrix cracks and the fracture of yams always occurred in yarn crossover areas due to the unique weave architecture.
引用
收藏
页码：183 / 188
页数：6
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