Fatigue microcrack nucleation modeling: A survey of the state of the art

Mohammad Dabiri (Corresponding Author), Anssi Laukkanen, Timo Björk

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)

    Abstract

    Many different approaches have been proposed for modeling of fatigue crack nucleation and microstructurally short fatigue crack propagation in polycrystalline metals. The mechanisms governing dislocations and slip at micro- and nanoscale have to be taken into account to be able to modify the microstructure of metals and develop materials with improved fatigue resistance. This paper reviews modeling approaches that take the microstructure into the consideration specifically from the fatigue crack nucleation point of view. Key concepts are explained, challenges described, and uncertainties discussed, followed by a comprehensive list of articles on the subject published mainly in the past decade.

    Original languageEnglish
    Pages (from-to)368-376
    Number of pages9
    JournalInternational Review of Mechanical Engineering
    Volume9
    Issue number4
    DOIs
    Publication statusPublished - 1 Jan 2015
    MoE publication typeNot Eligible

    Keywords

    • Crystal plasticity
    • Dislocation
    • Fatigue crack nucleation
    • Microstructure

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