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    STP520

    Derivation of a Failure Law for Creep Under a Cyclic Stress

    Published: 01 January 1973


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    Abstract

    The problem of creep fracture under an imposed cyclic stress is considered solely in terms of wedge crack growth. The derivation of a relationship similar to that suggested by Coffin for fatigue is illustrated, and this simple model is extended qualitatively to outline one form of a creep:fatigue interaction.

    Keywords:

    fatigue (materials), crack propagation, creep tests, fracturing, stress cycle


    Author Information:

    Williams, JA
    Marchwood Engineering Laboratories, Southampton,


    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP38836S