Strain energy release rate for off-axis ply cracking in laminated composites

Maria Kashtalyan, Costas Soutis

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Strain energy release rate associated with matrix cracking in the Θ-layer of unbalanced symmetric [O/Θ]s composite laminate is predicted analytically using a 2-D shear lag stress analysis and the Equivalent Constraint Model (ECM). Its dependence on the crack density and ply orientation angle is examined for glass/epoxy and carbon/epoxy laminates. Suitability of a mixed mode fracture criterion to predict the cracking onset strain is discussed.
    Original languageEnglish
    Pages (from-to)-L8
    JournalInternational Journal of Fracture
    Volume112
    Issue number2
    Publication statusPublished - Nov 2001

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