Piezoelectric behavior of pre-stressed curved actuators under load

Karla Mossi, Justin Costley, Zoubeida Ounaies, Robert Bryant

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Pre-stressed curved actuators typically consist of a piezoelectric ceramic (lead zirconate titanate or PZT) laminated between various layered materials. In one configuration, THUNDER, the bottom layer is stainless steel and the top layer is aluminum; the metallic layers are attached to the PZT ceramic using a polymeric adhesive. In another configuration, Lipca-C2, the layers comprise a glass/epoxy composite and a carbon/epoxy composite. Experimental and numerical results of displacement performance under unloaded conditions have been investigated in the past. The results show that the Lipca-C2 devices produced more displacement than the THUNDER devices when clamped and unloaded. The present study includes a comparative performance of both devices under load to evaluate their lifting capability. Both out-of-plane and in-plane displacements are assessed as a function of load and voltage at low frequency. A non-contact laser was used for the out-of-plane measurements simultaneously with an optic fiber for in-plane displacement at 0 to 5N load values. The load is attached to one end of the actuators, and to avoid possible damage to the actuators, it is moved through a mechanism that utilizes a frictionless linear bearing and a pulley.

Original languageEnglish (US)
Pages (from-to)432-441
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5387
DOIs
StatePublished - Oct 25 2004
EventSmart Structures and Materials 2004 - Active Materials: Behaviour and Mechanics - San Diego, CA, United States
Duration: Mar 15 2004Mar 18 2004

Fingerprint

Actuator
Actuators
actuators
Epoxy
Bearings (structural)
Pulleys
Piezoelectric ceramics
pulleys
Stainless Steel
Composite
Composite materials
Piezoelectric Ceramics
Aluminum
Fiber optics
Configuration
composite materials
piezoelectric ceramics
Adhesives
Non-contact
Carbon

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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Piezoelectric behavior of pre-stressed curved actuators under load. / Mossi, Karla; Costley, Justin; Ounaies, Zoubeida; Bryant, Robert.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 5387, 25.10.2004, p. 432-441.

Research output: Contribution to journalConference article

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