Analyse du flambement thermique des matériaux FGM piézoélectriques

Abstract

This work focuses on the analysis of the buckling of functionally graduated plates and beams integrated into surface-bonded piezoelectric actuators and is subjected to the combined action of thermal loads and constant tensile loads due to the applied actuator. The properties of the functionally graduated material assumed to vary through the thickness continuously. The equations of equilibrium and stability of piezoelectric FGM beams and plates are obtained based on the theory of shear deformation. The novelty of this work is to obtain the critical buckling temperature solution for FGM plates and beams integrated with piezoelectric layers. Particular attention is paid to the various parameters that influence the critical thermal buckling load of piezoelectric FGM plates, such as: loading type, geometric parameters, power law index and the effects of the applied actuator voltage.