SIMULATING THE EFFECTS OF POROSITY ON THE D31PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE

Jack Kloster; Matthew Danley; Tony Struntz; Victor Lai; Ping Zhao

doi:10.1115/smasis2022-90607

SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE

Jack Kloster, Matthew Danley, Tony Struntz, Victor Lai, Ping Zhao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A piezoelectric, thin film polyvinylidene fluoride (PVDF) material was developed for application as a blood pressure/flow sensor within an artificial heart. In an effort to increase the piezoelectric coefficient, d31, and maximize the sensitivity of the PVDF material, nanoscale pores were introduced into the thin films. The purpose of the pores was to increase the mechanical strain of the material under compressive loading, and thus increase the charge separation and piezoelectric coefficient. Strain tracking under tensile loading was performed to determine the elastic modulus and Poisson's ratio of the PVDF material, which were then used to model a simulated material in COMSOL Multiphysics software. Simulations were run to determine the d31 piezoelectric coefficient of the material, and the simulated results were compared with experimental results from a previous study. As porosity of the PVDF films increased, the experimental results showed an increase in d31 from 21.3 pC/N to 51.3 pC/N, or 141%. The simulated results showed an increase in d31 from 16.7 pC/N to 47.2 pC/N, or 183%. The similarity between previous experimental results and novel simulated results suggests that the simulated model used is a reliable method for estimating d31 of PVDF.

Original language	English (US)
Title of host publication	Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022
Publisher	American Society of Mechanical Engineers
ISBN (Electronic)	9780791886274
DOIs	https://doi.org/10.1115/smasis2022-90607
State	Published - 2022
Event	ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022 - Dearborn, United States Duration: Sep 12 2022 → Sep 14 2022

Publication series

Name	Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022

Conference

Conference	ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022
Country/Territory	United States
City	Dearborn
Period	9/12/22 → 9/14/22

Bibliographical note

Funding Information:
This work is funded by the University of Minnesota’s Grant-in-Aid of Research, Artistry, and Scholarship program.

Publisher Copyright:
Copyright © 2022 by ASME.

Keywords

piezoelectric polymer
porosity
PVDF
simulation
strain tracking

Publisher link

10.1115/smasis2022-90607

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Cite this

Kloster, J., Danley, M., Struntz, T., Lai, V., & Zhao, P. (2022). SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE. In Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022 Article V001T01A005 (Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022). American Society of Mechanical Engineers. https://doi.org/10.1115/smasis2022-90607

SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE. / Kloster, Jack; Danley, Matthew; Struntz, Tony et al.
Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022. American Society of Mechanical Engineers, 2022. V001T01A005 (Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kloster, J, Danley, M, Struntz, T, Lai, V & Zhao, P 2022, SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE. in Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022., V001T01A005, Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022, American Society of Mechanical Engineers, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022, Dearborn, United States, 9/12/22. https://doi.org/10.1115/smasis2022-90607

Kloster J, Danley M, Struntz T, Lai V , Zhao P. SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE. In Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022. American Society of Mechanical Engineers. 2022. V001T01A005. (Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022). doi: 10.1115/smasis2022-90607

Kloster, Jack ; Danley, Matthew ; Struntz, Tony et al. / SIMULATING THE EFFECTS OF POROSITY ON THE D₃₁PIEZOELECTRIC COEFFICIENT OF POLYVINYLIDENE FLUORIDE. Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022. American Society of Mechanical Engineers, 2022. (Proceedings of ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2022).

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abstract = "A piezoelectric, thin film polyvinylidene fluoride (PVDF) material was developed for application as a blood pressure/flow sensor within an artificial heart. In an effort to increase the piezoelectric coefficient, d31, and maximize the sensitivity of the PVDF material, nanoscale pores were introduced into the thin films. The purpose of the pores was to increase the mechanical strain of the material under compressive loading, and thus increase the charge separation and piezoelectric coefficient. Strain tracking under tensile loading was performed to determine the elastic modulus and Poisson's ratio of the PVDF material, which were then used to model a simulated material in COMSOL Multiphysics software. Simulations were run to determine the d31 piezoelectric coefficient of the material, and the simulated results were compared with experimental results from a previous study. As porosity of the PVDF films increased, the experimental results showed an increase in d31 from 21.3 pC/N to 51.3 pC/N, or 141%. The simulated results showed an increase in d31 from 16.7 pC/N to 47.2 pC/N, or 183%. The similarity between previous experimental results and novel simulated results suggests that the simulated model used is a reliable method for estimating d31 of PVDF.",

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