Saddle-like deformation in a dielectric elastomer actuator embedded with liquid-phase gallium-indium electrodes

We introduce a dielectric elastomer actuator (DEA) composed of liquid-phase Gallium-Indium (GaIn) alloy electrodes embedded between layers of poly(dimethylsiloxane) (PDMS) and examine its mechanics using a specialized elastic shell theory. Residual stresses in the dielectric and sealing layers of PD...

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Veröffentlicht in:	Journal of applied physics 2014-10, Vol.116 (14), p.144905
Hauptverfasser:	Wissman, J., Finkenauer, L., Deseri, L., Majidi, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Actuators Applied physics BINARY ALLOY SYSTEMS Computational fluid dynamics CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY COUPLING Curvature Deformation mechanisms Dependence DIELECTRIC MATERIALS Dielectrics Elastic shells ELASTOMERS ELECTRIC POTENTIAL ELECTRODES FABRICATION GAIN Gallium base alloys GALLIUM COMPOUNDS Indium INDIUM COMPOUNDS LAYERS LIQUID METALS Liquid phases Polydimethylsiloxane Potential energy Residual stress RESIDUAL STRESSES Shell theory Silicone resins SIMULATION
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Zusammenfassung:	We introduce a dielectric elastomer actuator (DEA) composed of liquid-phase Gallium-Indium (GaIn) alloy electrodes embedded between layers of poly(dimethylsiloxane) (PDMS) and examine its mechanics using a specialized elastic shell theory. Residual stresses in the dielectric and sealing layers of PDMS cause the DEA to deform into a saddle-like geometry (Gaussian curvature K
ISSN:	0021-8979 1089-7550
DOI:	10.1063/1.4897551