The allowable load bearing capacity of undamaged thin-walled stringer stiffened carbon fibre reinforced plastic (CFRP) panels loaded in compression is currently limited by its buckling load. The extension to a novel stability design scenario - to permit postbuckling under ultimate load or even more progressive to move ultimate load close to collapse - requires validated simulation procedures for this highly nonlinear topic for fast tools in the early design phase up to numerical analysis within the certification process. Different aspects of the validation process with respect to experimental investigations, nonlinear FE analysis as well as the comparison on different levels of detail are highlighted. It has been shown that the pre-test planning and analysis is crucial for a reliable and goal oriented validation of numerical results, which finally leads to the need of real validation test rather then phenomenological expriments to obtain a principle physical understanding. The numerical approach detailed allows a sufficient accurate nonlinear calculation of the considered stiffened CFRP structures. Within the validation process it has been pointed out that different levels of detail have to be examined to obtain a broader idea of how well the numerical results represent the experimental data. The question which now arises is, to which extend the validated results for a specific test specimen allow a transfer to different configurations of stringer stiffened CFRP-panels (e.g. change in lay-up, stringer spacing, radius of curvature or dimension/level of the structural component). Or the other way around, how many predefined test specimens are necessary to validate a desired parametric design space for this aircraft fuselage type of structure.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Validation procedure for nonlinear analysis of stringer stiffened CFRP panels


    Weitere Titelangaben:

    Validierungsmethode für die nichtlineare Analyse von stringerversteiften CFK-Paneelen


    Beteiligte:


    Erscheinungsdatum :

    2006


    Format / Umfang :

    8 Seiten, 10 Bilder, 10 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    VALIDATION PROCEDURE FOR NONLINEAR ANALYSIS OF STRINGER STIFFENED CFRP PANELS

    Kling, A. / Tessmer, J. / Degenhardt, R. et al. | British Library Conference Proceedings | 2006


    The Performance of Post-Buckled CFRP Stringer-Stiffened Panels Containing Defects and Damage

    Greenhalgh, Emile / Meeks, Charlotte / Clarke, Andrew et al. | AIAA | 2003


    The Performance of Post-Buckled CFRP Stringer-Stiffened Panels Containing Defects and Damage

    Greenhalgh, E. / Meeks, C. / Clarke, A. et al. | British Library Conference Proceedings | 2003


    STRINGER STIFFENED COMPOSITE PANELS HAVING IMPROVED PULL-OFF STRENGTH

    BEHZADPOUR FOROUZAN / CHENG JIANGTIAN | Europäisches Patentamt | 2023

    Freier Zugriff

    STRINGER STIFFENED COMPOSITE PANELS HAVING IMPROVED PULL-OFF STRENGTH

    FOROUZAN BEHZADPOUR / CHENG JIANGTIAN | Europäisches Patentamt | 2019

    Freier Zugriff