STP1012

    Mode I and Mode II Delamination of Thermosetting and Thermoplastic Composites

    Published: Jan 1989


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    Abstract

    A study of the delamination behavior of three classes of composite material is described: glass/epoxy, graphite/epoxy, and graphite/PEEK (polyetheretherketone). Mode I loading was applied to double cantilever beam (DCB) specimens of two thicknesses, while three different types of mode II specimen were tested: end-notched flexure (ENF), end-notched cantilever beam (ENCB), and cantilever beam enclosed notch (CBEN). The latter was developed specifically for this study and is described in detail. A mixed mode specimen is also described. Results from both static and fatigue tests are discussed in terms of fracture mechanics values.

    Keywords:

    composite materials, delamination, mode I, mode II, mixed mode, glass/epoxy, graphite/epoxy, graphite/PEEK, unidirectional


    Author Information:

    Prel, YJ
    Engineer, Centre National ďEtudes Spatiales, Evry,

    Davies, P
    Researcher, Ecole Polytechnique Fédérale de Lausanne,

    Benzeggagh, ML
    Lecturer, Université de Technologie de Compiègne, Compiègne,

    de Charentenay, FX
    Research director, Peugeot S.A., Velizy,


    Paper ID: STP10419S

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP10419S


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