ANALYSIS OF CROSS-PLY LAMINATES WITH PIEZOELECTRIC FIBER-REINFORCED COMPOSITE ACTUATORS USING FOUR-VARIABLE REFINED PLATE THEORY

摘要: This study presents an analytical solution for cross-ply composite laminates integrated with a piezoelectric fiber-reinforced (PFRC) actuator subjected to electromechanical loading using the four-variable refined plate theory. theory predicts parabolic variation of transverse shear stresses and satisfies zero traction on surfaces without using the correction factor. Using principle of minimum potential energy, governing equations simply supported rectangular plates are extracted Navier method is adopted equations. The comparison obtained results with other common plate theories exact indicates that besides simplicity presented formulation, it is very accurate in analysis laminated with PFRC. Also effects thickness ratio, aspect number layers, staking sequence and amount electrostatic loading displacements investigated and the findings reported.