STP856: The Use of the Partial Unloading Compliance Method for the Determination of JI-R Curves and JIc

    Voss, B
    Senior scientist, Fraunhofer-Institut für Werkstoffmechanik, Freiburg,

    Mayville, RA
    Senior scientist, Arthur D. Little, Inc., Cambridge, MA

    Pages: 14    Published: Jan 1985


    Abstract

    A computerized testing system was developed and utilized to determine JI-R curves and JIc by the partial unloading compliance method according to the ASTM Test for JIc, a Measure of Fracture Toughness (E 813) and the tentative test procedure for determining the plane strain JI-R curve. Based on testing experience with different materials in the temperature range from −196 to > 300°C some problems of the standard procedure concerning, for example, mechanical loading, data evaluation, and validity requirements, are discussed and some alternatives are proposed.

    Keywords:

    fracture (materials), crack propagation, fracture tests, fracture mechanics, elastic plastic, J integral, tests, ductile fracture, resistance curve, loading grips


    Paper ID: STP34521S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP34521S


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