The relationship between Ct and contour integrals under small-scale transient creep

Chang Sik Oh, Yun Jae Kim, Kee Bong Yoon, Robert A. Ainsworth, Kamran Nikbin

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    In this paper, the relationship between the Ct and contour integrals for small-scale transient creep conditions is established, via elastic-creep finite element analysis. It is found that the Ct integral is similar to the contour integral value evaluated roughly at the creep zone size defined as the boundaries where time-dependent effective creep strains equal the instantaneous effective elastic strains and measured normal to the crack plane at the crack tip.

    Original languageEnglish
    Pages (from-to)565-574
    Number of pages10
    JournalEngineering Fracture Mechanics
    Volume77
    Issue number3
    DOIs
    Publication statusPublished - 2010 Mar

    Keywords

    • C integral
    • C(t) integral
    • Contour integral
    • Finite element analysis

    ASJC Scopus subject areas

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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