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  4. Design and Characterization of an Equibiaxial Multi-Electrode Dielectric Elastomer Actuator
 
journal article

Design and Characterization of an Equibiaxial Multi-Electrode Dielectric Elastomer Actuator

Holzer, Simon  
•
Tiwari, Bhawnath  
•
Konstantinidi, Stefania Maria Aliki  
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April 8, 2025
Materials

With the ongoing journey of automation advancements and a trend towards miniaturization, the choice of actuator plays a crucial role. Over recent years, soft actuators have demonstrated their usefulness in various applications, especially where light weight and high strain are required. Dielectric elastomer actuators (DEAs) are a class of soft actuators that provide high-strain actuation possibilities in applications like biomedicine, logistics, or consumer electronics. A variety of work featuring DEAs for actuation has been carried out in recent years, but a single work detailing the design conception, fabrication, modeling and experimental validation is lacking, especially in the context of achieving high strains with the integration of multiple electrodes and their interaction. This work discusses these issues with an equibiaxial DEA, enabling optimized equibiaxial strain patterns due to full use of the available actuation area. The developed DEA can achieve an equibiaxial strain of 12.75% for actuation at 60 V µm −1 over an active area of 7 cm 2 which is an improvement of 1.3 times compared to traditional dot actuators. These properties position the device as a promising alternative for various applications like cell cultures or microassembly and provide an advantage of optimized use of passive regions within the actuator.

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Type
journal article
DOI
10.3390/ma18081693
Author(s)
Holzer, Simon  

EPFL

Tiwari, Bhawnath  
Konstantinidi, Stefania Maria Aliki  

EPFL

Civet, Yoan  

EPFL

Perriard, Yves  

EPFL

Date Issued

2025-04-08

Publisher

MDPI AG

Published in
Materials
Volume

18

Issue

8

Article Number

1693

Subjects

dielectric elastomer actuator

•

design of experiments

•

strain optimization

•

multi-electrode actuator

•

soft actuator

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAI  
CAM  
FunderFunding(s)Grant NumberGrant URL

Werner Siemens-Stiftung

Available on Infoscience
April 11, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/249052
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