The SINTAP fracture toughness estimation procedure

Henryk Pisarski (Corresponding Author), Kim Wallin

    Research output: Contribution to journalArticleScientificpeer-review

    27 Citations (Scopus)

    Abstract

    The maximum likelihood (MML) procedure for the analysis of fracture toughness data generated at a single temperature that was developed for the SINTAP flaw assessment procedure is described. The procedure involves a series of steps to ensure that a Weibull toughness distribution fitted to experimental data is conservative. Validation is provided by experimental data from weld metal, heat affected zone and parent plate. Results are compared with those from assessments carried out to existing methods described in BSI PD6493:1991 and BS 7910:1999. It is concluded that for small data sets, the MML procedure provides a greater level of consistency and reduces selection of potentially non-conservative fracture toughness values.

    Original languageEnglish
    Pages (from-to)613 - 624
    Number of pages12
    JournalEngineering Fracture Mechanics
    Volume67
    Issue number6
    DOIs
    Publication statusPublished - 2000
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Maximum likelihood
    Fracture toughness
    Heat affected zone
    Toughness
    Welds
    Metals
    Defects
    Temperature

    Keywords

    • weld metals
    • fracture mechanics
    • weak link
    • heat affected zone
    • structural assessment

    Cite this

    Pisarski, Henryk ; Wallin, Kim. / The SINTAP fracture toughness estimation procedure. In: Engineering Fracture Mechanics. 2000 ; Vol. 67, No. 6. pp. 613 - 624.
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    The SINTAP fracture toughness estimation procedure. / Pisarski, Henryk (Corresponding Author); Wallin, Kim.

    In: Engineering Fracture Mechanics, Vol. 67, No. 6, 2000, p. 613 - 624.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Wallin, Kim

    N1 - Project code: V9SU00198

    PY - 2000

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    N2 - The maximum likelihood (MML) procedure for the analysis of fracture toughness data generated at a single temperature that was developed for the SINTAP flaw assessment procedure is described. The procedure involves a series of steps to ensure that a Weibull toughness distribution fitted to experimental data is conservative. Validation is provided by experimental data from weld metal, heat affected zone and parent plate. Results are compared with those from assessments carried out to existing methods described in BSI PD6493:1991 and BS 7910:1999. It is concluded that for small data sets, the MML procedure provides a greater level of consistency and reduces selection of potentially non-conservative fracture toughness values.

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    KW - fracture mechanics

    KW - weak link

    KW - heat affected zone

    KW - structural assessment

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