Stress and failure analysis of composite laminates with an inclusion under multiaxial compression-tension loading

P. Berbinau, C. Filiou, C. Soutis

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The present paper investigates the failure of orthotropic laminates with a filled hole subjected to biaxial compression-tension loading. This is an idealised case that simulates a situation where the impact damaged laminate has been repaired by drilling a hole and then plugging the hole with a perfect-fit core made of a dissimilar material. The exact stress distribution in the laminate has been determined using the complex variable mapping method. These stresses are then employed in a fracture mechanics failure model to predict the failure load of a laminate with a filled hole under in-plane compression-dominated multi-axial loading. Failure strength predictions are compared to open hole results and experimental data.
    Original languageEnglish
    Pages (from-to)307-326
    Number of pages19
    JournalApplied Composite Materials
    Volume8
    Issue number5
    DOIs
    Publication statusPublished - Sept 2001

    Keywords

    • Complex variable mapping
    • Composite laminates
    • Compression
    • Fibre microbuckling
    • Filled-hole
    • Inclusion
    • Multi-axial loading
    • Open-hole
    • Strength prediction
    • Stress distributions

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