Modeling and characterization of piezoelectrically actuated bistable composites
Bowen, C. R., Giddings, P., Salo, A. and Kim, H. A., 2011. Modeling and characterization of piezoelectrically actuated bistable composites. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58 (9), pp. 1737-1750.
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This paper develops and validates a finite-element model to predict both the cured shape and snap-through of asymmetric bistable laminates actuated by piezoelectric macro fiber composites attached to the laminate. To fully describe piezoelectric actuation, the three-dimensional compliance [sij], piezoelectric [dij], and relative permittivity [ij] matrices were formulated for the macro fiber actuator. The deflection of an actuated isotropic aluminum beam was then modeled and compared with experimental measurements to validate the data. The model was then extended to bistable laminates actuated using macro fiber composites. Model results were compared with experimental measurements of laminate profile (shape) and snap-through voltage. The modeling approach is an important intermediate step toward enabling design of shapechanging structures based on bistable laminates.
|Creators||Bowen, C. R., Giddings, P., Salo, A. and Kim, H. A.|
|Departments||Faculty of Engineering & Design > Mechanical Engineering|
Faculty of Humanities & Social Sciences > Health
|Research Centres||Materials Research Centre|
Aerospace Engineering Research Centre
|Publisher Statement||Bowen_IEEE-Trans-UFFC_2011_58_9_1737.pdf: © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works|
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