STP888

    Subsized Bend and Charpy V-Notch Specimens for Irradiated Testing

    Published: Jan 1986


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    Abstract

    Characterization of the fracture resistance of structural materials from specimens small in volume is an essential element of fission and fusion reactor design and alloy development. In this study ⅓-sized Charpy V-notch specimens and small bend bars ranging in thickness down to 2.5 mm have been investigated. Techniques have been developed for fabricating these specimens and testing them over a temperature range of 170 to 590 K under static and dynamic conditions. Tests have been performed to extract fracture mechanics parameters (KIc, JIc) and fundamental material parameters (e.g., micro-cleavage fracture stress σ*f) and to examine behavior anticipated in thin wall ferritic structures at temperatures corresponding to the lower shelf.

    Keywords:

    fracture, cleavage, fracture toughness, K, Ic, J, -integral, J, Ic, Charpy impact test, three-point bend, subsized specimens, transition temperature, two-parameter criteria, ferritic steels, pressure vessel, fusion reactor


    Author Information:

    Lucas, GE
    University of California, Santa Barbara, CA

    Odette, GR
    University of California, Santa Barbara, CA

    Sheckherd, JW
    University of California, Santa Barbara, CA

    McConnell, P
    Fracture Control Corporation, Goleta, CA

    Perrin, J
    Fracture Control Corporation, Goleta, CA


    Paper ID: STP33012S

    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP33012S


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