The nonlinear transient behavior of the delaminated composite curved shell panel under different kinds of mechanical loading is investigated in this analysis. The delaminated shell panel model is developed mathematically using two higher-order midplane theories in conjunction with the Green–Langrage type of geometrical nonlinear strains including all the nonlinear higher-order terms. Further, the desired nonlinear responses are computed numerically with the help of a unique computer code developed in the MATLAB® environment. The nonlinear numerical responses are computed using Newmark’s time integration scheme together with the direct iterative method in conjunction with finite-element steps. Further, the convergence behavior of the present numerical results is checked. In addition, the validity of the present numerical responses is shown by comparing the results with those of the available published literature. Finally, the role of the size, location, and position of delamination as well as the effects of different design parameters (curvature ratio, aspect ratio, modular ratio, shell configuration, and constraint condition) on the nonlinear transient responses are computed through a wide variety of numerical examples and discussed in detail.


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    Title :

    Nonlinear Transient Finite-Element Analysis of Delaminated Composite Shallow Shell Panels



    Published in:

    AIAA Journal ; 55 , 5 ; 1734-1748


    Publication date :

    2017-05-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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