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  • Non-linear finite element formulation for long-term elasto-dynamic computation of shells
    Damjanić, Frano ...
    Formulation for the computation of dynamic response of flexible shells is considered in this work. The underlying elasto-dynamic shell models is obtained by following the principles of the first ... order large rotation shell theory. Large rotations of the director field are described by singularity-free rotation vector formulation. Time discretisation is performed by using an implicit numerical time-integration scheme. The energy and momentum conserving algorithm, which exactly preserves the fundamental constants of shell motion, is used. Spatial discretisation is based on a mixed quadrilateral finite element. Fully discrete weak form of the initial boundary value problem is consistently linearised in order to achieve a quadratic rate of asymptotic convergence. The main objective of the present work is to develope a framework for numericallly stable simulation of long-term non-linear dynamic response of flexible shell-like structures, which may be undergoing large deformations and large overal motion. Numerical results are presented to illustrate the performance of the mixed four noded shell element in conjunction with the adopted time-integration algotithm
    Vir: Proceedings of The Third Asian-Pacific Conference on Computational Mechanics : 16-18 September 1996, Seoul, Korea (Str. 147-152)
    Vrsta gradiva - prispevek na konferenci
    Leto - 1996
    Jezik - angleški
    COBISS.SI-ID - 69991

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