Measurement of In-Plane Shear Strength of Carbon/Carbon Composites by Compression of Double-Notched Specimens

被引：9
|
作者：
Yan, K. F. [1 ]
Zhang, C. Y. [1 ]
Qiao, S. R. [1 ]
Song, C. Z. [1 ]
Han, D. [1 ]
Li, M. [1 ]
机构：
[1] NW Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Shaanxi, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2012年 / 21卷 / 01期
基金：
美国国家科学基金会;
关键词：
carbon/carbon composites; double-notched specimen; in-plane shear strength; MATRIX COMPOSITE; C/C COMPOSITES; TENSILE;
D O I：
10.1007/s11665-010-9823-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The compression of a double-notched specimen was used to determine the in-plane shear strength (IPSS) of a carbon/carbon composite in the paper. The effects of the notch distance (L), thickness (T), and notch width (W) and supporting jig on the IPSS of the double-notched specimens were investigated numerically and experimentally. The fracture surfaces were examined by a scanning electron microscope. It was found that the IPSS varied with L. Thin specimen yielded low strength. W has little effect on IPSS. The main failure modes include the matrix shear cracking, delamination, fracture and pullout of fibers or fiber bundles. Meanwhile, a supporting jig can provide lateral support and prevent buckling, therefore lead to the failure in a shear mode.
引用
收藏
页码：62 / 68
页数：7
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