To allow an efficient preliminary design, a grid pattern or configuration optimization strategy is proposed for grid-stiffened composite structures under the constraint of sustaining the buckling resistant capability. This is achieved by first introducing a configuration vector for representing stiffeners in a grid unit, which is applicable for the description of iso-grid, ortho-grid X -grid, and bi-grid. The parametric equivalent stiffener model of the structure is derived by the smearing method, and the global and local buckling loads are calculated for the different grid configurations. The artificial bee colony algorithm was used as an optimizer to address the discrete design variable space, including a grid-unit size, height, and thickness of stiffeners that could be specified by designers or manufacturing requirements. Two test examples validated the effectiveness of the approach. The results suggested that both optimal and suboptimal solutions can be considered effectively as design options in the preliminary stage of design for such types of structures.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Buckling Analysis and Configuration Optimum Design of Grid-Stiffened Composite Panels


    Contributors:
    Xu, Yuanming (author) / Chen, Hao (author) / Wang, Xi (author)

    Published in:

    AIAA Journal ; 58 , 8 ; 3653-3664


    Publication date :

    2020-04-20


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Optimum Design, Experimental Testing and Post-Buckling Analysis of Thick Composite Stiffened Panels

    Liu, Wenli / Butler, Richard / Mileham, Antony et al. | AIAA | 2005


    Global and local buckling analysis of grid-stiffened composite panels

    Wang, Dan / Abdalla, Mostafa M. | Tema Archive | 2015



    Optimal Design of Grid-Stiffened Composite Panels Using Global and Local Buckling Analyses

    Jaunky, N. / Knight, N. / Ambur, D. et al. | British Library Conference Proceedings | 1996


    Buckling of Stiffened Panels

    Shama, Mohamed | Springer Verlag | 2013