BENDING OF FILAMENT-WOUND COMPOSITE LAMINATED CYLINDRICAL-SHELLS

This paper presents a rigorous elasticity solution for filament wound composite laminated cylindrical shells subjected to out-of-plane bendi ng. The material of the shell is assumed to be cylindrically anisotrop ic. Based on the theory of cylindrically anisotropic elasticity, coupl ed partial differential governing equations are developed using Lekhni tskii's stress functions. Homogeneous solutions are obtained using sep aration of variables and polynomial forms are used for particular solu tions. To illustrate the fundamental nature of the problem, an example of off-axis composite shells is presented. Complex three-dimensional stress states, large stress gradients through the thickness and strong effect of fiber orientations are reported. Detailed stress distributi ons of two laminated shells [45/-45]s, [45/-45] are examined.