The present work introduces efficient methodologies based on the finite-element method for a quick evaluation of damage resistance and damage tolerance of composite aerospace structures. Monolithic, stringer-stiffened structures, and sandwich structures are considered. The presented methodologies cover the simulation of the dynamic response of a structure during a low velocity impact event including the prediction of the internal non-visible or barely visible damage that develops during the impact. Additionally, methods for the prediction of the compression-after-impact strength are presented. In order to permit an accurate and efficient calculation of deformations and stresses in sandwich structures, special finite-element formulations have been developed. A comparison of simulation results with experimental data is presented for a two-stringer monolithic panel and for a honeycomb sandwich plate. The examples demonstrate that the presented methodologies can be used to quickly assess the damage tolerance of composite structures.


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    Titel :

    Efficient prediction of damage resistance and tolerance of composite aerospace structures


    Weitere Titelangaben:

    Wirksame Vorhersage des Beschädingungsresistenz und -toleranz bei Raumfahrzeugstrukturen aus Verbundwerkstoffen


    Beteiligte:
    Baaran, J. (Autor:in) / Karger, L. (Autor:in) / Wetzel, A. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    10 Seiten, 18 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Efficient prediction of damage resistance and tolerance of composite aerospace structures

    Baaran, J / Kärger, L / Wetzel, A | SAGE Publications | 2008



    Damage Tolerance Concept for Aerospace Structures

    Nagar, A. | British Library Online Contents | 1994


    Investigation of impact and damage tolerance in advanced aerospace composite structures

    Bayandor, J / Thomson, R S / Scott, M L et al. | Online Contents | 2003


    Investigation of impact and damage tolerance in advanced aerospace composite structures

    Bayandor,J. / Thomson,R.S. / Scott,M.L. et al. | Kraftfahrwesen | 2003