Volume 14, Issue 4 (July 1986)

    Development of a Constant-K Specimen for Materials Testing

    CODEN: JTEOAD

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    Abstract

    A study is presented of a constant stress intensity factor specimen comprising four circular cutouts. The results of fatigue crack growth tests, compliance measurements, and a finite element formulation show that minor modifications to a center cracked tension specimen lead to constancy in the stress intensity factor as a function of crack length. The basic geometry can also be repeated in a stacked configuration in order to test multiple cracks in a single setup.


    Author Information:

    Huculak, P
    Senior Research Officer, National Aeronautical Establishment, National Research Council of Canada, Ottawa, Ontario


    Stock #: JTE11262J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11262J

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    Author
    Title Development of a Constant-K Specimen for Materials Testing
    Symposium , 0000-00-00
    Committee E08