The residual strength of a curved and stiffened panel containing a two-bay crack was assessed using the cohesive model. This panel represents a section of a wide-body aeroplane fuselage. The tests were conducted at IMA GmbH Dresden in cooperation with Airbus Industries Germany. The structural panel was modelled using 3D finite elements and a layer of cohesive elements ahead of each crack tip allowing for 70 mm crack extension. Identification of the cohesive parameters was done on small laboratory test pieces. Special effort was made for the transfer of these parameters to the structure. Reasonably conservative predictions of the residual strength of the panel were achieved. The boundary conditions of the loading devices of the test rig are shown to have substantial influence on the predictions.


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    Titel :

    Application of the cohesive model for predicting the residual strength of a large scale fuselage structure with a two-bay crack


    Weitere Titelangaben:

    Anwendung des Kohäsionsmodells für die Vorhersage der Restfestigkeit einer großen Flugzeugrumpfstruktur mit einem Zweiabschnittsriss


    Beteiligte:
    Cornec, A. (Autor:in) / Schnöfeld, W. (Autor:in) / Schwalbe, K.H. (Autor:in) / Scheider, I. (Autor:in)

    Erschienen in:

    Engineering Failure Analysis ; 16 , 8 ; 2541-2558


    Erscheinungsdatum :

    2009


    Format / Umfang :

    18 Seiten, 16 Bilder, 2 Tabellen, 33 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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