Piezoelectric PZT/epoxy composites for sensing and actuating torsional motion

Robert C. Wetherhold; Nandakumar Panthalingal

doi:10.1117/12.148482

23 July 1993 Piezoelectric PZT/epoxy composites for sensing and actuating torsional motion

Robert C. Wetherhold, Nandakumar Panthalingal

Proceedings Volume 1916, Smart Structures and Materials 1993: Smart Materials; (1993) https://doi.org/10.1117/12.148482
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

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.

Citation Download Citation

Robert C. Wetherhold and Nandakumar Panthalingal "Piezoelectric PZT/epoxy composites for sensing and actuating torsional motion", Proc. SPIE 1916, Smart Structures and Materials 1993: Smart Materials, (23 July 1993); https://doi.org/10.1117/12.148482

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