STP775: Damage Mechanism and Life Prediction of Graphite/Epoxy Composites

    Badaliance, R
    Technical specialist-Technology and branch chief-Technology, McDonnell Aircraft Co., McDonnell Douglas Corp., St. Louis, Mo.

    Dill, HD
    Technical specialist-Technology and branch chief-Technology, McDonnell Aircraft Co., McDonnell Douglas Corp., St. Louis, Mo.

    Pages: 14    Published: Jan 1982


    Abstract

    This paper describes observation of fatigue damage mechanism in composites subjected to compression dominated fatigue loading, formulation of a damageindicating parameter based on the intralaminar microcracking of the resin, and its application in conjunction with a linear fatigue damage model to predict spectrum life of graphite/epoxy composite laminates.

    Keywords:

    damage mechanism, resin microcracks, graphite/epoxy laminates, damage-indicating parameter, linear residual strength reduction, constant amplitude fatigue, spectrum fatigue life prediction, composite materials


    Paper ID: STP34329S

    Committee/Subcommittee: E07.01

    DOI: 10.1520/STP34329S


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