Abstract
A general finite element procedure is presented to model the hypar shells using eight ndash noded curved quadratic isoparametric elements with five degrees of freedom per node including two inplane displacements and one transverse displacement and two rotations Problems of twisted cantilever plate which have structural resemblance with skewed hypar shell are solved using the present approach and the results are compared with published ones Having established the exactitude of the present formulation numerical experiments with simply supported skewed composite hypar shells are conducted for four different types of laminations including four layered symmetric and antisymmetric cross and angle ply laminates The first four natural frequencies are presented in tabular forms and are studied critically and a set of meaningful conclusions are derived nbsp
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