STP678: Fracture Toughness: The Role of Indentation Techniques

    Evans, AG
    University of California, Berkeley, Calif.

    Pages: 24    Published: Jan 1979


    Abstract

    The quantitative measurement of the radial fractures that occur around hardness indentations in brittle materials has long been advocated as a measure of the fracture toughness. The evolution of the technique and the fundamental basis for toughness determination by indentation are described. The latest experimental results on a range of brittle materials are used to demonstrate the utility of the technique. Finally, the role of the technique, within the toughness testing repertoire, is discussed.

    Keywords:

    fracture (materials), brittle materials, crack propagation, indentation, toughness, residual stresses


    Paper ID: STP36630S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP36630S


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