Volume 41, Issue 1 (January 2013)

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

    (Received 24 January 2012; accepted 23 July 2012)

    Published Online: 2012

    CODEN: JTEOAD

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    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,

    Zhang, Zhongwei
    Aerospace Research Institute of Material and Processing Technology, Beijing,

    Qin, Lijun
    CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei,

    Yang, Xiaoguang
    Aerospace Research Institute of Material and Processing Technology, Beijing,

    Feng, Zhihai
    Aerospace Research Institute of Material and Processing Technology, Beijing,

    Wang, Yang
    CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei,

    Miao, Hong
    CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei,

    He, Linghui
    CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei,

    Gong, Xinglong
    CAS Key Laboratory of Mechanical Behavior and Design of Materials, Dept. of Modern Mechanics, Univ. of Science and Technology of China, Hefei,


    Stock #: JTE20120006

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120006

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    Author
    Title Measuring Mechanical Properties of the 3D Carbon/Carbon Composite Using Automated Grid Method
    Symposium , 0000-00-00
    Committee D30