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  4. More than 10-fold increase in the actuation strain of silicone dielectric elastomer actuators by applying prestrain
 
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conference paper

More than 10-fold increase in the actuation strain of silicone dielectric elastomer actuators by applying prestrain

Akbari, Samin  
•
Rosset, Samuel  
•
Shea, Herbert  
2013
Proceedings of SPIE
Electroactive Polymer Actuators and Devices (EAPAD)

Silicone based dielectric elastomer actuators are preferred for reliable and fast actuation due to their negligible viscoelastic behavior. However, it is more challenging to achieve large deformation actuation using this class of polymers compared to the traditionally used VHB films. In this paper, we present theoretical guidelines for improving actuation strain of silicone based dielectric elastomer actuators. The electromechanical behavior of two different silicones is compared and it is demonstrated that the softest elastomer is not necessarily the best choice to achieve large deformation. Lastly, we have experimentally shown that uniaxially prestretching the elastomer with an optimum prestretch ratio enhances the actuation strain up to 10 times. Actuation strain of up to 80% on 100 × 100 μm2 microactuators is generated.

  • Details
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Type
conference paper
DOI
10.1117/12.2009912
Web of Science ID

WOS:000323000000046

Author(s)
Akbari, Samin  
•
Rosset, Samuel  
•
Shea, Herbert  
Date Issued

2013

Publisher

Spie-Int Soc Optical Engineering

Publisher place

Bellingham

Published in
Proceedings of SPIE
ISBN of the book

978-0-8194-9470-2

Total of pages

13

Series title/Series vol.

Proceedings of SPIE

Volume

8687

Start page

86871P

Subjects

dielectric elastomer actuators

•

silicone

•

theoretical analysis

•

uniaxial prestretch

•

biaxial prestretch

Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LMTS  
Event nameEvent placeEvent date
Electroactive Polymer Actuators and Devices (EAPAD)

San Diego

March 10, 2013

Available on Infoscience
April 22, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/91661
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