Abstract
A specialized functional for thin cylindrical shells derived from the Washizu-Hu variational principle using considerations of relaxed continuity requirements is presented. A mixed formulation for a cylindrical thin shell finite element is developed from this functional. The assumed fields for displacements and stress resultants are bilinear functions in the longitudinal and circunferential directions. The agreement between the present results and those obtained in previous formulations is good if the comparison is based on the precision related to the number of variables involved in the problem.
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