Effect of strain dependent cohesive zone model on predictions of interface crack growth

Viggo Tvergaard, J.W. Hutchinson

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Crack growth along an interface joining an elastic-plastic solid that does not yield plastically is studied numerically. accounting for mixed mode loading under conditions of small scale yielding. The fracture process is represented in terms of a cohesive zone model. for which the work of separation per unit area and the peak stress required for separation are basic parameters: but where also a plastic strain effect on the fracture process is incorporated. This additional effect is included to model accelerated void nucleation and growth at interface, resulting from intense plastic straining just in front of the crack tip.
    Original languageEnglish
    JournalJournal De Physique. IV : JP
    Volume6
    Issue number6
    Pages (from-to)C6.165-C6.172
    ISSN1155-4339
    DOIs
    Publication statusPublished - 1996

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