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

页码：62 / 68

页数：7

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