Method for Hygromechanical Characterization of Graphite/Epoxy Composite

    Volume 9, Issue 1 (March 1987)

    ISSN: 0884-6804

    CODEN: CTROAD

    Page Count: 5


    Peimanidis, G
    Visiting professor, Research assistant, and professor, Northwestern University, Evanston, IL

    Yaniv, G
    Visiting professor, Research assistant, and professor, Northwestern University, Evanston, IL

    Daniel, IM
    Visiting professor, Research assistant, and professor, Northwestern University, Evanston, IL

    Abstract

    An experimental method is described for measuring hygroscopic swelling strains and mechanical strains of moisture-conditioned composite specimens. The method consists of embedding encapsulated strain gages in the midplane of the composite laminate; thus it does not interfere with normal moisture diffusion. It is particularly suited for measuring moisture swelling coefficients and for mechanical testing of moisture-conditioned specimens at high strain rates. Results obtained by the embedded gage method were shown to be more reliable and reproducible than those obtained by surface gages, dial gages, or extensometers.


    Paper ID: CTR10423J

    DOI: 10.1520/CTR10423J

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    Author
    Title Method for Hygromechanical Characterization of Graphite/Epoxy Composite
    Symposium , 0000-00-00
    Committee D30