Abstract
Piezoelectric materials are mainly used for the development of sensors and actuators. However, they are also used to develop structures to harvest electricity. This study uses the most utilized piezoelectric material, lead zirconate titanate (PZT4), as a structural element. The structural element is modeled in the form of a rectangular beam. The material properties of PZT4 such as dielectric constant, elastic orthotropic, piezoelectric, and density are used to model the rectangular beam. To analyze the piezoelectric effect, the potential difference at the bottom surface of the beam is kept at zero. Then, the compressive load, or pressure, is applied at the top and bottom surfaces of the beam. As a result of finite element analysis, it is observed that the electric potential increases with the increasing load. A maximum electric potential of 977 V is obtained under 20 kPa of compressive load. The results of this study can be used as a basis for the development of energy harvesting devices based on piezoelectric materials. In the future, FEA can be used to analyze the inverse piezoelectric effect for the development of actuators.
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