Piezo Electric Bending of a Beam

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Model Data

Type: multiphysics structural mechanics electromagnetics

Physics Modes: plane stress conductive media dc

Keywords: linear elasticity piezo electric multi domain validation

Multiphysics simulation of piezoelectric bending of a laminated beam as for example can be found in actuators for MEMS (micro electro mechanical systems) devices. The model features coupled plane-stress and electrostatics physics modes with equations modified to account for the anisotropic piezo-electric coupling. The simulation results are validated against an analytical solution for the Euler-Bernoulli equation with piezo-electric displacement showing good agreement [1].

This model is available as an automated tutorial by selecting Model Examples and Tutorials… > Multiphysics > Piezo Electric Bending of a Beam from the File menu. Or alternatively, follow the linked step-by-step instructions.


FEATool Multiphysics Tutorial - Modeling and Simulation of Piezo Electric Bending of a Beam


References

[1] C-I. Tseng, Electromechanical Dynamics of a Coupled Piezo-electric/Mechanical System Applied to Vibration Control and Distributed Sensing, Univ. of Kentucky, Lexington, July 1989.

[2] V. Pierfort, Finite Element Modeling of Piezoelectric Active Structures, ULB, Faculty of Applied Sciences, 2000.

[3] W-S. Hwang, H.C. Park, Finite Element Modeling of Piezoelectric Sensors and Actuators, AIAA Journal, Vol. 31, No. 5, May 1993.