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Nonlinear
electromechanical fields and localized polarization switching
of piezoelectric macrofiber composites
Yasuhide Shindo, Fumio Narita, Koji Sato and Tomo Takeda |
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Vol. 6 (2011), No. 7-8, 1089–1102
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Abstract |
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This paper examines theoretically and experimentally the nonlinear electromechanical response of piezoelectric macrofiber composites. 3D finite element analysis was carried out to study the strain versus electric field curve and the internal electromechanical fields near interdigitated electrodes in the macrofiber composites by introducing a model for polarization switching. The piezoelectric fibers in the macrofiber composite are partially or fully poled. Results on the strain versus electric field curves from microelectromechanical models and simple experiments were also presented, and comparison was made with the finite element solutions. |
Keywords
piezomechanics, finite element method, material testing,
piezoelectric composites, electromechanical field
concentrations, smart materials and structures
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Milestones
Received: 26 June 2010
Revised: 10 December 2010
Accepted: 13 December 2010
Published: 21 December 2011
Proposed: Adair R. Aguiar
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Authors |
| Yasuhide Shindo | |
| Department of Materials
Processing Graduate School of Engineering Tohoku University Aoba-yama 6-6-02, Sendai 980-8579 Japan |
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| Fumio Narita | |
| Department of Materials
Processing Graduate School of Engineering Tohoku University Aoba-yama 6-6-02, Sendai 980-8579 Japan |
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| Koji Sato | |
| Department of Materials
Processing Graduate School of Engineering Tohoku University Aoba-yama 6-6-02, Sendai 980-8579 Japan |
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| Tomo Takeda | |
| Department of Materials
Processing Graduate School of Engineering Tohoku University Aoba-yama 6-6-02, Sendai 980-8579 Japan |
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