  Piezoelectric actuators have been widely used to form a self-monitoring smart
system to do Structural health monitoring (SHM). One of the most fundamental
issues in using actuators is to determine the actuation effects being
transferred from the actuators to the host structure. This report summaries the
state of the art of modeling techniques for piezoelectric actuators and
provides a numerical analysis of the static and dynamic electromechanical
behavior of piezoelectric actuators surface-bonded to an elastic medium under
in-plane mechanical and electric loads using finite element method. Also case
study is conducted to study the effect of material properties, bonding layer
and loading frequency using static and harmonic analysis of ANSYS. Finally,
stresses and displacements are determined, and singularity behavior at the tips
of the actuator is proved. The results indicate that material properties,
bonding layers and frequency have a significant influence on the stresses
transferred to the host structure.
