Effect of plate thickness and load history on fatigue crack growth

John Codrington, Andrei Kotousov, Stuart Wildy, Sook-Ying Ho

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    A new theoretical approach is presented for investigating fatigue crack growth in plates of finite thickness. The developed approach utilizes a modified strip-yield analysis and the concept of plasticity-induced crack closure. A number of typical fatigue crack growth phenomena are investigated including the thickness effect on constant amplitude fatigue crack growth, retardation due to a tensile overload cycle, and short crack growth from sharp notches. Theoretical predictions are compared with experimental data and are found to be in very good correlation.

    Original languageEnglish
    Pages (from-to)201-204
    Number of pages4
    JournalKey Engineering Materials
    Volume417-418
    DOIs
    Publication statusPublished - 2010

    Keywords

    • Fatigue crack growth
    • Load history
    • Overload retardation
    • Plasticity-induced crack closure
    • Plate thickness effect
    • Short fatigue crack growth

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