Static and dynamic behavior of simply-supported cross-ply laminated piezoelectric cylindrical panels with imperfect bonding

Three-dimensional state-space analysis is developed for a simply-supported, cross-ply piezoelectric laminated cylindrical panel with interlaminar bonding imperfections. To solve the state equation with variable coefficients, a layerwise method is adopted to transform it to an equation with constant coefficients within each sub-layer of sufficiently small thickness. A linear constitutive relationship, which accounts for the electric field, is adopted to model the adhesive bonding whose effect is considered by introducing interfacial transfer matrices. The problems of bending and free vibration are considered with numerical results presented and discussed.