Ductile fracture toughness estimation based on CVN upper shelf energy

Kim Wallin

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

    Abstract

    J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.
    Original languageEnglish
    Title of host publicationBALTICA V
    Subtitle of host publicationCondition and Life Management for Power Plants
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages635-646
    Volume2
    ISBN (Electronic)951-38-5717-4
    ISBN (Print)951-38-5716-6
    Publication statusPublished - 2001
    MoE publication typeA4 Article in a conference publication
    EventBALTICA V - Condition and Life Management for Power Plants - Porvoo, Finland
    Duration: 6 Jun 20018 Jun 2001

    Publication series

    SeriesVTT Symposium
    Number212
    ISSN0357-9387

    Conference

    ConferenceBALTICA V - Condition and Life Management for Power Plants
    Abbreviated titleBaltica V
    CountryFinland
    CityPorvoo
    Period6/06/018/06/01

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    fracture toughness
    energy
    power law

    Cite this

    Wallin, K. (2001). Ductile fracture toughness estimation based on CVN upper shelf energy. In BALTICA V: Condition and Life Management for Power Plants (Vol. 2, pp. 635-646). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 212
    Wallin, Kim. / Ductile fracture toughness estimation based on CVN upper shelf energy. BALTICA V: Condition and Life Management for Power Plants. Vol. 2 Espoo : VTT Technical Research Centre of Finland, 2001. pp. 635-646 (VTT Symposium; No. 212).
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    abstract = "J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 {\%} lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.",
    author = "Kim Wallin",
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    Wallin, K 2001, Ductile fracture toughness estimation based on CVN upper shelf energy. in BALTICA V: Condition and Life Management for Power Plants. vol. 2, VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 212, pp. 635-646, BALTICA V - Condition and Life Management for Power Plants, Porvoo, Finland, 6/06/01.

    Ductile fracture toughness estimation based on CVN upper shelf energy. / Wallin, Kim.

    BALTICA V: Condition and Life Management for Power Plants. Vol. 2 Espoo : VTT Technical Research Centre of Finland, 2001. p. 635-646 (VTT Symposium; No. 212).

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

    TY - GEN

    T1 - Ductile fracture toughness estimation based on CVN upper shelf energy

    AU - Wallin, Kim

    PY - 2001

    Y1 - 2001

    N2 - J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.

    AB - J-R -curve testing is costly and difficult. The results may also sometimes be unreliable. For less demanding structures, J-R -curve testing is therefore not practical. The Charpy-V-notch test provides information about the energy needed to fracture a small specimen in half. On the upper shelf this energy relates to ductile fracture resistance and it is possible to correlate it to the J-R -curve. Here, a simple power law description of the J-R -curve was correlated to the CVNUS energy. This new correlation corresponds essentially to a 5 % lower bound and conforms well with earlier correlations, regardless of the definition of the ductile fracture toughness parameter.

    M3 - Conference article in proceedings

    SN - 951-38-5716-6

    VL - 2

    T3 - VTT Symposium

    SP - 635

    EP - 646

    BT - BALTICA V

    PB - VTT Technical Research Centre of Finland

    CY - Espoo

    ER -

    Wallin K. Ductile fracture toughness estimation based on CVN upper shelf energy. In BALTICA V: Condition and Life Management for Power Plants. Vol. 2. Espoo: VTT Technical Research Centre of Finland. 2001. p. 635-646. (VTT Symposium; No. 212).