Dependence on boundary conditions for actuation characteristics of dielectric elastomer actuators

Matthias Kollosche; Hristiyan Stoyanov; Hülya Ragusch; Guggi Kofod

doi:10.1117/12.847515

9 April 2010 Dependence on boundary conditions for actuation characteristics of dielectric elastomer actuators

Matthias Kollosche, Hristiyan Stoyanov, Hülya Ragusch, Guggi Kofod

Proceedings Volume 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010; 76422X (2010) https://doi.org/10.1117/12.847515
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

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.

Citation Download Citation

Matthias Kollosche, Hristiyan Stoyanov, Hülya Ragusch, and Guggi Kofod "Dependence on boundary conditions for actuation characteristics of dielectric elastomer actuators", Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76422X (9 April 2010); https://doi.org/10.1117/12.847515

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