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    Criteria for Growth of the Angled Crack

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    Mixed mode fracture in two dimensions has been of recent interest via study of a crack at an arbitrary angle to the axis of applied load. Three criteria for growth under tensile loads are reviewed and, although they proceed on distinct bases, give similar results. A corollary to a minimum energy hypothesis is inferred. A compression model is suggested and examined in terms of two criteria. Comparisons to data, to the extent they are available, are considered; observations on the nature of the data are followed by suggestions for further research.


    crack propagation, fractures (materials), criteria, growth, mixed mode

    Author Information:

    Swedlow, JL
    Professor, Department of Mechanical Engineering, Carnegie Institute of Technology, Pittsburgh, Pa.

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP28661S