Combination of dielectric elastomer membrane actuators with dielectric elastomer switches to create an autonomous elastomer-based platform

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

New approaches are needed to enhance intelligence in microsystems. Elastomer-based systems offer a wide range of possibilities in this regard when the different properties of dielectric elastomer (DE) transducers are skillfully combined. Therefore, an inflatable circular shaped DE-membrane was chosen as geometry, because studies have shown a significant potential for large displacement. Silicone was selected as the material because of its significant advantages, such as fast response times and low hysteresis. Unfortunately, it does not exhibit snap-through behavior, which was shown by using the hyperelastic Gent material model. Various thicknesses of the silicone layer were analyzed with respect to their stress-strain curves, in order to find a suitable operating range with large flatness in the stress-strain curve. For electrostatic activation, two electrodes were applied on top and bottom of the membranes. This results in a dielectric elastomer actuator (DEA), which can change the height of the spherical inflated membrane when a sufficient voltage is applied. For including intrinsic intelligence, dielectric elastomer switches (DES) were added. For both, DEA and DES, the stiffening effect of the electrodes and DES structures were determined. This results in a promising composite configuration of a DEA with a layer thickness of 50 µm and a DES on top of a 20 µm insulation layer. With this combined base unit, the DEA achieved a displacement of 3 mm at an electric field of 80 V/µm, and the DES achieved a change in resistance of three orders of magnitude over a range of 1.3 mm. This combined base unit serves as the foundation for building an autonomous operating platform in the future.

Details

Original languageEnglish
Title of host publicationElectroactive Polymer Actuators, Sensors, and Devices, EAPAD 2026
EditorsKentaro Takagi, John D. W. Madden, Cedric Plesse, Stefan S. Seelecke, Anne Ladegaard Skov
PublisherSPIE - The international society for optics and photonics
Number of pages14
ISBN (electronic)9781510698314
Publication statusPublished - 17 Apr 2026
Peer-reviewedYes

Publication series

SeriesProceedings of SPIE - The International Society for Optical Engineering
Volume13945
ISSN0277-786X

Conference

Title2026 Electroactive Polymer Actuators, Sensors, and Devices
Abbreviated titleEAPAD 2026
Descriptionheld at SPIE Smart Structures + Nondestructive Evaluation 2026
Duration16 - 18 March 2026
LocationSheraton Vancouver Wall Centre
CityVancouver
CountryCanada

External IDs

Scopus 105038437239
ORCID /0000-0002-8588-9755/work/220700178

Keywords

Keywords

  • autonomous elastomer-based platform, Balloon-shaped membrane, dielectric elastomer actuator (DEA), dielectric elastomer switch (DES), Gent material model