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    STP1418

    Evaluation of Standard Charpy Impact Properties with Subsized Specimens

    Published: 0


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    Abstract

    Evaluation methodology of standard Charpy impact properties in the cleavage fracture region from subsized specimen test results has been demonstrated. It consists of 1) subsized Charpy V-notch impact tests; 2) tensile tests at various temperatures and strain rates; and 3) three dimensional finite element method (FEM) simulations of the impact test with a temperature and strain rate dependent constitutive equation and a cleavage fracture model that is based on a stress-critical area criteria. The standard impact properties of a ferritic/martensitic steel (JFMS) in the cleavage facture region have been evaluated, and there was reasonable agreement between simulations and experimental results.

    Keywords:

    Subsized charpy V-notch test, absorbed energy, finite element method, constitutive equation


    Author Information:

    Yamamoto, T
    Assist, professorEngineering Specialist, Inst. Material Research, Tohoku UniversityUniversity of California, IbarakiSanta Barbara, CA

    Yabuki, K
    Graduate student and professor, Inst. Material Research, Tohoku University, Sendai,

    Matsui, H
    Graduate student and professor, Inst. Material Research, Tohoku University, Sendai,

    Odette, GR
    Professors, University of California, Santa Barbara, CA

    Lucas, GE
    Professors, University of California, Santa Barbara, CA


    Committee/Subcommittee: E10.02

    DOI: 10.1520/STP10816S