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    Effects of Specimen Geometry on the Strength of Composite Materials

    Published: Jan 1973

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    This paper demonstrates the statistical relationships which exist between test specimens of different designs and how these relationships can be utilized in strength predictions. The specimens selected were the straight-sided tension coupon, uniaxial sandwich beam, and the acceptance-type flexure coupons. Experimental data were obtained for the [0]c, [90]c, [02/±45]c, [±45/902]c, and [0/±45/90]c laminates fabricated from Narmco 5505 boron-epoxy at various temperatures ranging from -65 to 420 F.


    composite materials, sandwich structures, laminates, stressstrain diagrams, tests, fibers

    Author Information:

    Kaminski, BE
    Senior structures engineer, Convair Aerospace Division, General Dynamics, Fort Worth, Tex.

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP36485S

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