A three dimensional mixed-hybrid finite strip for composite structures is proposed. This finite strip method is developed for composite structures of uniform geometrical cross section, and is based on the Hellinger-Reissner variational principle. The method is employed for the first order approximation of the edge layer problem around a circular hole in composite laminated plate. Numerical results are presented to show the strips' behavior characteristics regarding to spectral accuracy, finite element convergence, accuracy of stress evaluation and the consumed CPU time. The improvement in accuracy in comparison with conventional methods is remarkable.
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