STP460

    Strength Theories of Failure for Anisotropic Materials

    Published: Jan 1969


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    Abstract

    A discussion of several failure criteria from their initial application to homogeneous, orthotropic materials to their extension to “quasi-homogeneous,” anisotropic materials is presented. Also discussed are the assumptions, general limitations, and the physical and analytical significance of the respective “material constants.” The basic criteria include the Lame'-Navier maximum stress theory, Henky-von Mises distortional energy theory, Tresca maximum shear stress theory, and the St. Venant maximum strain stream theory.

    Keywords:

    composite materials, mechanical properties, anisotropic, unidirectional, fiber composites, fiberglass, reinforced plastics, boron, epoxy laminates, evaluation, tests


    Author Information:

    Kaminski, B. E.
    Structures engineergraduate student, General Dynamics Corp.Georgia Institute of Technology, Fort WorthAtlanta, Tex.Ga.

    Lantz, R. B.
    Senior engineer, AVCO Aerostructures Division, Nashville, Tenn.


    Paper ID: STP49814S

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP49814S


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