Active Control of Thermo-mechanical Buckling of Composite Laminated Plates Using Piezoelectric Actuators

This paper is concerned with the active control of thermo-mechanical buckling of composite laminated plates using piezoelectric facesheets as actuators. The four-variable trigonometric shear deformation theory and Hamilton’s principle are applied to formulate the governing equation of structural system. The temperature feedback control strategy is proposed to conduct the active control of thermal-mechanical buckling. The simulation results show that the thermo-mechanical buckling of composite laminated plates can be effectively controlled by the presented control method. With a specific control gain, the critical mechanical buckling load can remain constant at different temperatures. The effects of geometric parameters, fiber angle, stacking sequence, position of piezoelectric layer and boundary conditions on the active control of thermo-mechanical buckling are also investigated.