STP803V2

    Load History Effects on the JR-Curve

    Published: Jan 1983


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    Abstract

    The effect of load history on theJa behavior of materials was studied under cyclic loading conditions. Two steels were studied, an HY-130 steel and a A508 Class 2 steel. The HY-130 steel showed little effect of the cyclic loading and the behavior was labeled “R-curve-dominated crack growth.” The A508 Class 2 steel showed a significant effect of the cyclic loading and the behavior was labeled “cyclic-dominated crack growth.”

    Keywords:

    fracture toughness, R-curve, cracks, crack growth, cyclic loading, J-integral, monotonic loading, elastic-plastic fracture


    Author Information:

    Landes, JD
    Advisory scientist and senior engineer, Westinghouse R#x0026;D Center, Pittsburgh, Pa.

    McCabe, DE
    Advisory scientist and senior engineer, Westinghouse R#x0026;D Center, Pittsburgh, Pa.


    Paper ID: STP36795S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP36795S


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