Journal Published Online: 11 December 2012
Volume 41, Issue 1

Measuring Mechanical Properties of the 3D Carbon/Carbon Composite Using Automated Grid Method

CODEN: JTEVAB

Abstract

A precise measurement, which was based on the automated grid method, was developed to analyze the mechanical properties of a three-dimensional reinforced carbon/carbon composite under tensile and shear loading conditions. Young’s moduli and Poisson’s ratios of the carbon/carbon composites were studied by means of unidirectional tension testing, and the shear modulus was measured using the Iosipescu shear testing technique. The contact measurement method also was applied to test the tensile strain, and a more sophisticated method based on the digital image correlation technique was applied to test the shear strain. All the testing results obtained from the different methods agree well with one another, and the analysis indicates that the automated grid method is appropriate for testing the mechanical properties of carbon/carbon composites. Based on the stress state analysis, the Young’s modulus along the wrap or weft fiber orientations of the carbon/carbon composite can be obtained via the Iosipescu shear test.

Author Information

Li, Xiaofeng
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
Zhang, Zhongwei
Aerospace Research Institute of Material and Processing Technology, Beijing, CN
Qin, Lijun
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
Yang, Xiaoguang
Aerospace Research Institute of Material and Processing Technology, Beijing, CN
Feng, Zhihai
Aerospace Research Institute of Material and Processing Technology, Beijing, CN
Wang, Yang
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
Miao, Hong
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
He, Linghui
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
Gong, Xinglong
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei, CN
Pages: 9
Price: $25.00
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Details
Stock #: JTE20120006
ISSN: 0090-3973
DOI: 10.1520/JTE20120006