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Proceedings Paper

Dependence on boundary conditions for actuation characteristics of dielectric elastomer actuators
Author(s): Matthias Kollosche; Hristiyan Stoyanov; Hülya Ragusch; Guggi Kofod
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Paper Abstract

We present electro-mechanical characterizations of dielectric elastomer actuators (DEA) prepared from polystyrene- ethylene-butadiene-styrene (SEBS) with comparison to the commonly used VHB 4905 tape. This study discusses effects of boundary conditions, stiffness and voltage ramp rate on the actuation properties of both materials. Measurements on samples in pure-shear configuration were made with variation in both load and applied voltage, to achieve so-called '3D-plots'. A strong dependence of the actuation characteristics on the voltage ramp rate was observed, leading to a large shift in the 'optimum load' for VHB, which was not found for SEBS. This is due to the large difference in visco-elastic behavior between materials.

Paper Details

Date Published: 9 April 2010
PDF: 9 pages
Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76422X (9 April 2010); doi: 10.1117/12.847515
Show Author Affiliations
Matthias Kollosche, Univ. Potsdam (Germany)
Hristiyan Stoyanov, Univ. Potsdam (Germany)
Hülya Ragusch, Univ. Potsdam (Germany)
Guggi Kofod, Univ. Potsdam (Germany)

Published in SPIE Proceedings Vol. 7642:
Electroactive Polymer Actuators and Devices (EAPAD) 2010
Yoseph Bar-Cohen, Editor(s)

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