STP723

    Fatigue Characterization of Composite Materials

    Published: Jan 1981


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    Abstract

    A procedure is outlined that allows the generation of an S-N curve with some statistical value without resorting to an extremely large data base. The procedure is based on a power law representation of the S-N curve and a two-parameter Weibull distribution for time-to-failure at a specific stress level. A data pooling scheme is also discussed that allows the determination of a fatigue shape parameter that is independent of stress level.

    Keywords:

    fatigue (materials), composite materials, Weibull distribution, data pooling, S-N, curves


    Author Information:

    Whitney, JM
    Materials research engineer, Air Force Materials Laboratory, Wright-Patterson Air Force Base, Ohio,


    Paper ID: STP27618S

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP27618S


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