Upper shelf energy normalisation for sub-sized Charpy-V specimens

Kim Wallin (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    36 Citations (Scopus)

    Abstract

    When the plate thickness is less than 10 mm, testing with standard sized Charpy-V notch specimens is impossible. In such cases the testing must be based on sub-sized specimens. Sometimes, standard size specimens are impractical also for thicker sections. The use of sub-sized specimens requires extrapolation of the result from the sub-sized specimen to correspond to the result from a standard sized specimen. In this work, literature data combined with newly generated data were collected and examined in order to find the correct normalisation procedure for sub-sized specimen, upper shelf impact energy data. The resulting normalisation procedure, combined with a new Charpy-V-J–R curve correlation, was shown to produce realistic estimates of the materials upper shelf fracture toughness. In the case of materials showing pronounced splitting in the Charpy-V test, the estimates may be over-conservative.
    Original languageEnglish
    Pages (from-to)463-470
    Number of pages8
    JournalInternational Journal of Pressure Vessels and Piping
    Volume78
    Issue number7
    DOIs
    Publication statusPublished - 2001
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Charpy-V
    • Sub-size specimens
    • Upper shelf
    • Ductile fracture
    • Size effects

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