Electroelastic Analysis of Fiber Reinforced Piezoelectric Composite Beam based on Finite Element Method

Abstract

Piezoelectric composites have been increasingly used in engineering structures due to their excellent flexibility, durability and robustness to damage. In this paper, the electroelastic behaviors of the fiber reinforced piezoelectric composite (FRPC) beam are analyzed by the finite element method. The stress, vertical displacement and electric potential of the FRPC beam subjected to a uniform load are studied. The effect of the fiber volume fraction on the electroelastic behaviors of the FRPC beam is discussed in detail. The results reveal that the stress is independent of the fiber volume fraction, but the fiber volume fraction has a great influence on the vertical displacement and electric potential. The results obtained in the present paper may be useful references for the application and design of the piezoelectric actuators and sensors.