Large deflection analysis of circular piezoelectric micro-actuator with flexoelectric effect.

ABSTRACT: At micro/nano scale, the stiffening effect and flexoelectric effect of strain gradient play important roles in the electromechanical coupling response of piezoelectric micro-components. In this paper, the large deflection bending problem of circular piezoelectric micro-actuator is studied based on the extended linear dielectric theory. In addition to the piezoelectric effect, the flexoelectric effect, the stiffening effect of strain gradient and the high-order electric field effect of polarization gradient are introduced. According to the variational principle, a size-dependent model of circular piezoelectric micro-actuator is established to investigate its electromechanical coupling response. The contributions of piezoelectric effect and flexoelectric effect on large deflection behaviors

SUBMITTER: Ji X 

PROVIDER: S-EPMC10632473 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature