Abstract
An accurate higher-order hybrid-mixed C 0 harmonic shell-of-revolution element is proposed. Unlike existing hybrid-mixed shell-of-revolution elements, the present element introduces additional nodeless degrees only for displacement field interpolation in order to enhance the solution convergence rate. In the course of developing the present element, we address some fundamental issues such as the effect of the nodeless degrees and the role of the stress field approximation consistent with the displacement field. Through several numerical examples, the use of the additional nodeless degrees is shown to yield very accurate results only with a few elements.
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