Examination on fracture resistance of F82H steel and performance of small specimens in transition and ductile regimes

Kim Wallin, Anssi Laukkanen, Seppo Tähtinen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    7 Citations (Scopus)


    Fracture toughness determination standards and procedures give limits for the measuring capacity of different specimen sizes and types. Numerical methods and local approach are used as additional means to determine the validity of the toughness estimates and provide toughness scaling criteria for integrity assessment. The current study contributes to this domain and presents experimental and numerical results of fracture toughness and tearing resistance of F82H ferritic stainless steel. Three-point bend specimens of sizes 3 * 4 * 27 mm, 5 * 5 * 27 mm, 5 * 10 * 55 mm, 10 * 10 * 55 mm and 25 mm compact tension specimens are tested in the temperature range of-196°C to room temperature, in order to determine and characterize the fracture properties of F82H and specimen measuring capabilities from brittle lower shelf cleavage to upper shelf ductile R-curve. The experimental results are used to calibrate local approach models, which are then further applied to determine the attributes and usability of the different small specimens.
    Original languageEnglish
    Title of host publicationSmall Specimen Test Techniques
    EditorsMikhail Sokolov, John D. Landes, Glenn E. Lucas
    PublisherAmerican Society for Testing and Materials (ASTM)
    ISBN (Electronic)978-0-8031-5465-0
    ISBN (Print)978-0-8031-2897-2
    Publication statusPublished - 2002
    MoE publication typeA4 Article in a conference publication
    EventSmall specimen test techniques - Reno, United States
    Duration: 23 Jan 200025 Jan 2000

    Publication series

    SeriesASTM Selected Technical Papers


    ConferenceSmall specimen test techniques
    Country/TerritoryUnited States


    • brittle fracture
    • ductile fracture
    • miniature specimens
    • local approach
    • ProperTune


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