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FROM:
Hadrien Bense, Miguel Trejo, Etienne Reyssat, Jose Bico and Benoit Roman,
“Buckling of elastomer sheets under non-uniform electro-actuation”, Soft Matter, Vol. 13, No. 15, pp 2876-2885, 2017, http://dx.doi.org/10.1039/C7SM00131B
ABSTRACT: Dielectric elastomer sheets undergo in-plane expansion when stimulated by a transverse electric field. We study experimentally how dielectric plates subjected to a non-uniform voltage distribution undergo buckling instabilities. Two different configurations involving circular plates are investigated: plates freely floating on a bath of water, and plates clamped on a frame. We describe theoretically the out-of-plane deformation of the plates within the framework of weakly non-linear plate equations. This study constitutes a first step of a route to control the 3D activation of dielectric elastomers.
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