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    Prediction of Instability Using the KR-Curve Approach

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    An elastic-plastic R-curve instability prediction method is reported. The method is prepared in a format such that the computational steps outlined can be used as a guide to make instability predictions. Three example problems are given.


    R-curve, test procedure, instability, fracture mechanics, compliance, plastic zone, ASTM Standard Method E 561, elastic-plastic

    Author Information:

    McCabe, DE
    Senior engineer, Westinghouse Electric R&D, Pittsburgh, PA

    Schwalbe, KH
    Head, Fracture Mechanics Group, Research Center Geesthacht, Geesthacht,

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP35314S