Explicit modeling the progressive interface damage in fibrous composite: Analytical vs. numerical approach

V.I. Kushch, S.V. Shmegera, Leon Mishnaevsky

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    Abstract

    Two micromechanical, representative unit cell type models of fiber reinforced composite (FRC) are applied to simulate explicitly onset and accumulation of scattered local damage in the form of interface debonding. The first model is based on the analytical, multipole expansion type solution of the multiple inclusion problem by means of complex potentials. The second, finite element model of FRC is based on the cohesive zone model of interface. Simulation of progressive debonding in FRC using the many-fiber models of composite has been performed. The advantageous features and applicability areas of both models are discussed. It has been shown that the developed models provide detailed analysis of the progressive debonding phenomena including the interface crack cluster formation, overall stiffness reduction and induced anisotropy of the effective elastic moduli of composite.
    Original languageEnglish
    JournalComposites Science and Technology
    Volume71
    Issue number7
    Pages (from-to)989-997
    ISSN0266-3538
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Light strong materials for energy purposes

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