Modeling and characterization of piezoelectrically actuated bistable composites

Christopher R Bowen, Peter Giddings, Aki Salo, H Alicia Kim

Research output: Contribution to journalArticle

38 Citations (Scopus)
135 Downloads (Pure)

Abstract

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.
Original languageEnglish
Pages (from-to)1737-1750
Number of pages14
JournalIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Volume58
Issue number9
DOIs
Publication statusPublished - Sep 2011

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