STP627: Towards Development of a Standard Test for Measuring KIa

    Crosley, PB
    Principal scientist and director of research, Materials Research Laboratory, Inc., Glenwood, Ill.

    Ripling, EJ
    Principal scientist and director of research, Materials Research Laboratory, Inc., Glenwood, Ill.

    Pages: 20    Published: Jan 1977


    Abstract

    Measurement of KIa requires the production of a run-arrest segment of crack extension in a laboratory specimen and evaluation of the stress intensity factor a short time after the crack has arrested. The crack should propagate under conditions which simulate propagation in a thick section. Progress towards meeting these requirements with tests on tapered-double-cantilever-beam specimens is described. Aspects which require further clarification are discussed.

    Keywords:

    crack propagation, stress intensity, crack arrest, measurements, crack initiation, fracture properties


    Paper ID: STP27399S

    Committee/Subcommittee: E08.03

    DOI: 10.1520/STP27399S


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