A numerical study on anomalous behavior of piezoelectric response in functionally graded materials

A numerical study on anomalous behavior of piezoelectric response in functionally graded materials Finite element-based simulations have been performed on piezoelectric-based functionally graded materials (FGM). PZT (Lead zirconate titanate) and PVDF (Polyvinylidene fluoride) FGM composites have been investigated. Anomalous enhancement in output voltage has been observed at grading index n = 0.05 (Voltage = 210 V), which is 105 and 185% higher than the original material at n = 0 (PVDF) and n = ∞ (PZT), respectively. Further, role of Young’s modulus, dielectric constant, and piezoelectric constant was systematically investigated to understand this enhancement. It is found that performance of FGM not only relies on piezoelectric constants but also largely depends upon values of Young’s modulus and dielectric constant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

A numerical study on anomalous behavior of piezoelectric response in functionally graded materials

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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
D.O.I.
10.1007/s10853-017-1719-9
Publisher site
See Article on Publisher Site

Abstract

Finite element-based simulations have been performed on piezoelectric-based functionally graded materials (FGM). PZT (Lead zirconate titanate) and PVDF (Polyvinylidene fluoride) FGM composites have been investigated. Anomalous enhancement in output voltage has been observed at grading index n = 0.05 (Voltage = 210 V), which is 105 and 185% higher than the original material at n = 0 (PVDF) and n = ∞ (PZT), respectively. Further, role of Young’s modulus, dielectric constant, and piezoelectric constant was systematically investigated to understand this enhancement. It is found that performance of FGM not only relies on piezoelectric constants but also largely depends upon values of Young’s modulus and dielectric constant.

Journal

Journal of Materials ScienceSpringer Journals

Published: Oct 23, 2017

References

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