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


    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.


    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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