New developments of the Wallin, Saario, Törrönen cleavage fracture model

Kim Wallin (Corresponding Author), Anssi Laukkanen

    Research output: Contribution to journalArticleScientificpeer-review

    32 Citations (Scopus)

    Abstract

    The Wallin, Saario, Törrönen (WST) model, published originally in 1984, assumes the cleavage initiators to be carbides. The preliminary trials of the model appeared promising. However, at the time, it was not considered possible to fully calibrate the model to provide actual predictions of fracture toughness based on microstructural and mechanical property information, because of lack of computational power. Today, more than 20 years later the computational means have evolved sufficiently so that a new version of the WST model can be developed. The new version is connected to a general statistical model and includes the effect of strain. It is with some success compared to actual material data, predicting the cleavage initiation location.
    Original languageEnglish
    Pages (from-to)3367 - 3377
    Number of pages11
    JournalEngineering Fracture Mechanics
    Volume75
    Issue number11
    DOIs
    Publication statusPublished - 2008
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Carbides
    Fracture toughness
    Mechanical properties
    Statistical Models

    Keywords

    • Carbides
    • Cleavage fracture
    • Local approach
    • Statistical
    • ProperTune

    Cite this

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    title = "New developments of the Wallin, Saario, T{\"o}rr{\"o}nen cleavage fracture model",
    abstract = "The Wallin, Saario, T{\"o}rr{\"o}nen (WST) model, published originally in 1984, assumes the cleavage initiators to be carbides. The preliminary trials of the model appeared promising. However, at the time, it was not considered possible to fully calibrate the model to provide actual predictions of fracture toughness based on microstructural and mechanical property information, because of lack of computational power. Today, more than 20 years later the computational means have evolved sufficiently so that a new version of the WST model can be developed. The new version is connected to a general statistical model and includes the effect of strain. It is with some success compared to actual material data, predicting the cleavage initiation location.",
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    New developments of the Wallin, Saario, Törrönen cleavage fracture model. / Wallin, Kim (Corresponding Author); Laukkanen, Anssi.

    In: Engineering Fracture Mechanics, Vol. 75, No. 11, 2008, p. 3367 - 3377.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Laukkanen, Anssi

    PY - 2008

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    KW - Carbides

    KW - Cleavage fracture

    KW - Local approach

    KW - Statistical

    KW - ProperTune

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