Volume 4, Issue 2 (July 1982)

    Analytical/Experimental Correlations of Stiffness Properties of Unidirectional Composites

    CODEN: CTROAD

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    Abstract

    A finite element micromechanics analysis is used to predict the longitudinal and transverse moduli of both graphite/epoxy and glass/epoxy unidirectional composites, as a function of temperature, for various moisture preconditionings. These predictions are then correlated with corresponding experimental data. The micromechanics analysis includes temperature- and moisture-dependent matrix material properties, inelastic matrix stress-strain response, and anisotropic fibers. Thermal residual stresses caused by cooldown from the cure temperature and moisture-induced swelling stresses are included in the analysis. Good correlation is obtained between theory and experiment.


    Author Information:

    Schaffer, BG
    member of technical staff, Technology Support Division, Hughes Aircraft, Culver City, CA

    Adams, DF
    Professor mechanical engineering, Composite Materials Research Group, University of Wyoming, Laramie, WY


    Stock #: CTR10763J

    ISSN: 0884-6804

    DOI: 10.1520/CTR10763J

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    Author
    Title Analytical/Experimental Correlations of Stiffness Properties of Unidirectional Composites
    Symposium , 0000-00-00
    Committee D30