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Phenomenological model for coupled multi-axial piezoelectricity

Wei, Yuchen and Pellegrino, Sergio (2018) Phenomenological model for coupled multi-axial piezoelectricity. In: Behavior and Mechanics of Multifunctional Materials and Composites XII. Proceedings of SPIE. No.10596. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 105960R. ISBN 9781510616882.

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A quantitative calibration of an existing phenomenological model for polycrystalline ferroelectric ceramics is presented. The model relies on remnant strain and polarization as independent variables. Innovative experimental and numerical model identification procedures are developed for the characterization of the coupled electro-mechanical, multi-axial nonlinear constitutive law. Experiments were conducted on thin PZT-5A4E plates subjected to cross-thickness electric field. Unimorph structures with different thickness ratios between PZT-5A4E plate and substrate were tested, to subject the piezo plates to coupled electro-mechanical fields. Material state histories in electric field-strain-polarization space and stress-strain-polarization space were recorded. An optimization procedure is employed for the determination of the model parameters, and the calibrated constitutive law predicts both the uncoupled and coupled experimental observations accurately.

Item Type:Book Section
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Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors acknowledge helpful discussions with Professor Robert McMeeking and Professor Christopher Lynch.
Subject Keywords:Ferroelectrics, phenomenological model, parameter calibration, electro-mechanical coupling
Series Name:Proceedings of SPIE
Issue or Number:10596
Record Number:CaltechAUTHORS:20180615-113248296
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Official Citation:Yuchen Wei, Sergio Pellegrino, "Phenomenological model for coupled multi-axial piezoelectricity", Proc. SPIE 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII, 105960R (22 March 2018); doi: 10.1117/12.2296346;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87159
Deposited By: George Porter
Deposited On:15 Jun 2018 19:43
Last Modified:03 Oct 2019 19:52

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