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Proceedings Paper

Analytical model and experimental characterization of a dielectric elastomer annulus actuator undergoing large quasi-static deformation
Author(s): Eunice Yang; Mary I. Frecker; Eric M. Mockensturm; Danielle Wu
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Paper Abstract

An analytical model of a thin annulus made of a dielectric elastomer was derived in our earlier work. It is the focus of this paper to fabricate and test the electroactive polymer actuators presented in the model. Radial displacement measurements were obtained using a digital image correlation technique that involved cross-correlating images of the actuator before and after a change in the electric field. Results showed that the two-term Ogden material model provided a good agreement with experimental data. Hysteresis of the dielectric actuators was observed. Radial displacements of material points on the actuator varied between two consecutive tests which may indicate that strain has history-dependent characteristics.

Paper Details

Date Published: 26 July 2004
PDF: 11 pages
Proc. SPIE 5390, Smart Structures and Materials 2004: Smart Structures and Integrated Systems, (26 July 2004); doi: 10.1117/12.539993
Show Author Affiliations
Eunice Yang, The Pennsylvania State Univ. (United States)
Mary I. Frecker, The Pennsylvania State Univ. (United States)
Eric M. Mockensturm, The Pennsylvania State Univ. (United States)
Danielle Wu, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 5390:
Smart Structures and Materials 2004: Smart Structures and Integrated Systems
Alison B. Flatau, Editor(s)

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