An interface approach based on moving mesh and cohesive modeling in Z-pinned composite laminates

Marco Francesco Funari, Fabrizio Greco, Paolo Lonetti (Lead / Corresponding author), Raimondo Luciano, Rosa Penna

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    An FE approach based Arbitrary Lagrangian-Eulerian (ALE) and cohesive fracture mechanics is implemented to investigate the effects of debonding mechanisms on the behavior of z-pinned composite laminates. The model is based on the combination of moving and discrete cohesive interface elements, which allow the simulation of interfacial damage or strengthening mechanisms produced by debonding phenomena or z-pinned techniques, respectively. Moreover, complex phenomena such as crack initiation, coalescence mechanisms are easily implemented in both static and dynamic frameworks. Despite existing approaches, available from the literature, the computational procedure is able to overcome difficulties concerning mesh dependence of the solution, numerical complexities and costs involved in the solving procedure. The numerical implementation of the model and its capability to predict debonding mechanisms are discussed with respect different laminate configurations and onset conditions. Moreover, comparisons with existing experimental results available from the literature are developed to investigate the relationship between strengthened and unstrengthened composite laminates. © 2017 Elsevier Ltd
    Original languageEnglish
    Pages (from-to)207-217
    Number of pages11
    JournalComposites Part B: Engineering
    Volume135
    Early online date12 Oct 2017
    DOIs
    Publication statusPublished - 15 Feb 2018

    Keywords

    • ALE
    • Crack initiation
    • Dynamic debonding
    • Z-pins
    • Cracks
    • Debonding
    • Dynamics
    • Fracture mechanics
    • Laminated composites
    • Mesh generation
    • Arbitrary Lagrangian Eulerian
    • Coalescence mechanisms
    • Computational procedures
    • Laminate configuration
    • Numerical complexity
    • Numerical implementation
    • Strengthening mechanisms
    • Laminates

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