A Compact Specimen for Plane Strain Crack Arrest Toughness Testing

    Volume 8, Issue 1 (January 1980)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 7


    Crosley, PB
    Associate research director and presidentMembers of ASTM, Materials Research Laboratory, Glenwood, Ill.,

    Ripling, EJ
    Associate research director and presidentMembers of ASTM, Materials Research Laboratory, Glenwood, Ill.,

    Abstract

    A test method is described for measuring plane strain crack arrest toughness KIa with a compact shaped specimen. The method has a number of advantages over those previously used. Rather than a fatigue crack for initiation, a machine-notched, brittle weld is used, which reduces testing costs. A very stiff loading system consisting of a wedge and bushing assembly allows for much higher ratios of initiation to arrest toughness than those allowed with pin-loaded double-cantilever specimens. The use of large initiation values is expected to allow for larger KIa measurements with modest-sized specimens.


    Paper ID: JTE10589J

    DOI: 10.1520/JTE10589J

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    Author
    Title A Compact Specimen for Plane Strain Crack Arrest Toughness Testing
    Symposium , 0000-00-00
    Committee E08