There is always the question of choosing the appropriate constitutive model when simulating and analyzing piezoelectric material performance. Linear material modeling typically requires less computational resources; however this approach may not accurately capture the performance. In this paper, the scope of linear predictive modeling was analyzed by comparison with nonlinear modeling. Monomorph and bimorph actuators were modeled with each approach, and their respective performances were compared. It was found that even under small magnitudes of electric field, differences arise between the two approaches. The magnitude of the deviations depended upon actuator composition, applied electric field and boundary conditions. The impact of these differences can be considerable, such as for precision-based applications and cyclic applications where initial design errors could compound.
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ASME 2010 International Mechanical Engineering Congress and Exposition
November 12–18, 2010
Vancouver, British Columbia, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4446-5
PROCEEDINGS PAPER
Finite Element Analysis of Composite Piezoelectric Actuators Incorporating Nonlinear Material Behavior
M. A. Siddiq Qidwai,
M. A. Siddiq Qidwai
US Naval Research Laboratory, Washington, DC
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Virginia G. DeGiorgi
Virginia G. DeGiorgi
US Naval Research Laboratory, Washington, DC
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M. A. Siddiq Qidwai
US Naval Research Laboratory, Washington, DC
Virginia G. DeGiorgi
US Naval Research Laboratory, Washington, DC
Paper No:
IMECE2010-37497, pp. 405-416; 12 pages
Published Online:
April 30, 2012
Citation
Qidwai, MAS, & DeGiorgi, VG. "Finite Element Analysis of Composite Piezoelectric Actuators Incorporating Nonlinear Material Behavior." Proceedings of the ASME 2010 International Mechanical Engineering Congress and Exposition. Volume 9: Mechanics of Solids, Structures and Fluids. Vancouver, British Columbia, Canada. November 12–18, 2010. pp. 405-416. ASME. https://doi.org/10.1115/IMECE2010-37497
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