STP460

    Behavior of Fiber-Reinforced Plastic Laminates under Biaxial Loading

    Published: Jan 1969


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    Abstract

    This paper reports on 54 biaxial-loading tests on fiber glass-epoxy laminates of three lamination schemes: parallel ply, cross ply, and quasi-isotropic. The tests were conducted on a specially designed fixture using a cable-pulley system in conjunction with a universal testing machine. The loadings were biaxial tension with 1:1 and 1:2 principal-load ratios. The contours of the reduced-thickness test sections of the flat specimens were designed to achieve a uniform-stress field.

    Keywords:

    fiber composites, reinforced plastics, mechanical properties, evaluation, tests


    Author Information:

    Bert, C. W.
    Project director and professor, University of Oklahoma, Norman, Okla.

    Mayberry, B. L.
    Research engineer, now 2nd Lieutenant, U.S. Air Force, Tex.

    Ray, J. D.
    Co-project director; now assistant professor, Memphis State University, Memphis, Tenn.


    Paper ID: STP49828S

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP49828S


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