Stability analysis of piezoelectric laminated plates using finite strip method

Abstract

A semi analytical finite strip method was developed in present article for buckling of laminated composite plates with piezoelectric layers based on different plate theories. Displacement functions of plate were evaluated using a continuous harmonic function series in the longitudinal direction that satisfies the simply support boundary condition and a piecewise interpolation polynomial in the transverse direction. The analysis conducted based on Reddy's third order shear deformation theory, first order shear deformation theory and classical laminated plate theory. So, considering the strain-displacement relations and stress-strain relations, the standard stiffness and geometry matrices were evaluated using the virtual work principle. The numerical results of buckling of piezoelectric laminated plates based on different plate theories were presented. The effects of different electric conditions, length to thickness ratio and fiber orientation were investigated through the numerical examples. © CCM 2020 - 18th European Conference on Composite Materials. All rights reserved.