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Prediction of Brittle Fracture of Epoxy-Aluminum Flanging

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    0354578 - ÚFM 2011 RIV CZ eng J - Journal Article
    Korbel, J. - Schmidt, L.E. - Singh, B. - Zant, N. - Klusák, Jan - Knésl, Zdeněk
    Prediction of Brittle Fracture of Epoxy-Aluminum Flanging.
    Applied and Computational Mechanics. Roč. 4, č. 1 (2010), s. 49-56. ISSN 1802-680X
    R&D Projects: GA ČR GA101/08/0994
    Institutional research plan: CEZ:AV0Z20410507
    Keywords : Generalized stress intensity factor * flanging * crack initiation * bi-material interface
    Subject RIV: JL - Materials Fatigue, Friction Mechanics

    This paper presents a fracture mechanical approach for estimation of critical bending load of different types of aluminum-epoxy flanging and comparison with experimental measurements. For this purpose, several designs of the flanges were investigated. The flanges were glued to the epoxy bars and adhesive-epoxy interface was considered as a bi-material notch. Prediction of the failure is based on generalized stress intensity factor and generalized fracture toughness.
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