Analytical expressions for the energy release rate and mode-mixity phase angle are derived for a sandwich composite double-cantilever beam fracture specimen with the face sheets reinforced by stiff plates. The sandwich beam is considered symmetric, with identical top and bottom facesheets. Only a pure moment loading is considered. The J -integral coupled with laminate beam theory is employed to derive closed-form expression for the energy release rate in terms of the applied moments, geometry, and material properties. A scalar quantity ω is obtained to express the mode-mixity phase angle. It is shown that ω is independent of the applied loading conditions. The value of ω is found to be moderately influenced by reinforcement thicknesses.


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    Titel :

    Fracture Mechanics Analysis of Reinforced DCB Sandwich Debond Specimen Loaded by Moments


    Beteiligte:

    Erschienen in:

    AIAA Journal ; 56 , 1 ; 413-422


    Erscheinungsdatum :

    01.01.2018




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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