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Proceedings Paper

Piezoelectric PZT/epoxy composites for sensing and actuating torsional motion
Author(s): Robert C. Wetherhold; Nandakumar Panthalingal
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Paper Abstract

A pure PZT piezoceramic is unable to generate or sense twisting motion for applications including beams, plates, or shell panels because of its transverse isotropy (mm 6 symmetry), which permits only a bending motion. The design of a piezoceramic/polymer composite element which is orthotropic in the plane is the key to producing twisting motion, since this composite is stiff enough to provide actuation. The composite element can also sense twisting. With the requirement of orthotropy in mind, composites have been made by cutting rods from a PZT plate and placing them in an epoxy matrix. A plate theory analysis provides information on the optimum orientation angle of the PZT/epoxy composite to provide twisting actuation and sensing.

Paper Details

Date Published: 23 July 1993
PDF: 9 pages
Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); doi: 10.1117/12.148482
Show Author Affiliations
Robert C. Wetherhold, SUNY/Buffalo (United States)
Nandakumar Panthalingal, SUNY/Buffalo (United States)

Published in SPIE Proceedings Vol. 1916:
Smart Structures and Materials 1993: Smart Materials
Vijay K. Varadan, Editor(s)

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