THREE DIMENSIONAL ANALYSIS OF LAMINATED CYLINDRICAL PANELS WITH PIEZOELECTRIC LAYERS

A semi-analytical solution is presented for three dimensional elastic analysis offinitelylong, simply supported, orthotropic, laminated cylindrical panels with piezoelectric layerssubjected to outer pressure and electrostatic excitation. both the direct and inverse piezoelectriceffects are investigated. the solution is obtained through reducing the highly coupled partialdifferential equations (pde's) of equilibrium to ordinary differential equations (ode's) with variablecoefficients by means of trigonometric function expansion in longitudinal and circumferentialdirections. the resulting ode's are solved by dividing the radial domain into some finite subdivisionsand imposing necessary continuity conditions between the adjacent sub-layers. some numericalexamples are presented for the stress distribution and electric responses due to outer pressure in bothsensorial and actuating states. also, the effect of geometric properties on the sensitivity and actuatingpower of the structure are investigated.