Modeling and design of ferroelectric beam actuators

John E. Huber

doi:10.1117/12.539535

21 July 2004 Modeling and design of ferroelectric beam actuators

John E. Huber

Proceedings Volume 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics; (2004) https://doi.org/10.1117/12.539535
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

A non-linear bimorph device is proposed, in which the strain accompanying ferroelectric switching is used to drive curvature of a bilayer of ferroelectric material. An analysis of the proposed device suggests that a curvature about an order of magnitude greater than that readily obtained by conventional piezoelectric bimorphs is possible, whilst the peak tensile stresses in the device are comparable with those in conventional devices. The curvature achieved by the device upon poling is calculated approximately by using an analytical approach with idealized material behaviour. Two potential designs for the poling electrodes are suggested, and numerical calculations are used to optimize these designs.

Citation Download Citation

John E. Huber "Modeling and design of ferroelectric beam actuators", Proc. SPIE 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics, (21 July 2004); https://doi.org/10.1117/12.539535

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