STP1329

    Fracture Toughness Testing of Small and Standard Bending Specimens

    Published: Jan 1998


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    Abstract

    This work deals with an alternative possibility of performing fracture mechanics testing with small Charpy impact specimens in the same manner as for large, three-point bend-type specimens. The procedure is based upon the determination of Ji, which claims that the J-integral for fracture resistance at stable crack propagation initiation is a characteristic value of the material. It is shown that the results of the application of this procedure are promising in the cases of brittle fracture and brittle/ductile transition.

    Keywords:

    fracture resistance at stable crack propagation initiation, d.c. potential drop technique, Charpy impact specimen, micromechanisms


    Author Information:

    Kalkhof, D
    Laboratory for Safety and Accident Research, Paul Scherrer Institut, Villigen,

    Krompholz, K
    Laboratory for Safety and Accident Research, Paul Scherrer Institut, Villigen,


    Paper ID: STP37988S

    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP37988S


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