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Voltage-controlled complete stopbands in two-dimensional soft dielectrics

Getz, Roey and Kochmann, Dennis M. and Shmuel, Gal (2017) Voltage-controlled complete stopbands in two-dimensional soft dielectrics. International Journal of Solids and Structures, 113-114 . pp. 24-36. ISSN 0020-7683. https://resolver.caltech.edu/CaltechAUTHORS:20170518-074455016

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Abstract

Dielectric elastomers deform and stiffen when subjected to voltage. This work demonstrates how fiber composites made of incompressible dielectric elastomers exhibit complete band gaps—frequency ranges in which elastic wave propagation is prohibited, irrespective of its polarization and direction. To this end, we first analytically determine the quasi-static response of a wide class of composites to an electric field along the fibers. We then formulate and calculate incremental motions of general polarization propagating in the deformed composite, using a plane wave expansion approach. We numerically explore the dependency of the motion on the composite properties and electric field. We show how complete band gaps are tuned by adjusting the electric field, owing to resultant geometrical and physical changes. These results suggest that soft dielectrics can serve as tunable waveguides and filters.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.ijsolstr.2016.10.002DOIArticle
http://www.sciencedirect.com/science/article/pii/S0020768316302931PublisherArticle
ORCID:
AuthorORCID
Getz, Roey0000-0002-6749-5445
Kochmann, Dennis M.0000-0002-9112-6615
Additional Information:© 2016 Elsevier Ltd. Received 11 July 2016. Revised 21 September 2016. Available online 8 October 2016. The authors acknowledge BSF (Grant No. 2014358) support. G.S. and R.G. also acknowledge ISF (Grant No. 1912/15) support.
Funders:
Funding AgencyGrant Number
Binational Science Foundation (USA-Israel)2014358
Israel Science Foundation1912/15
Subject Keywords:Dielectric elastomer; Wave propagation; Band gap; Composite; Phononic crystal; Plane wave expansion; Nonlinear elasticity
Record Number:CaltechAUTHORS:20170518-074455016
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170518-074455016
Official Citation:Roey Getz, Dennis M. Kochmann, Gal Shmuel, Voltage-controlled complete stopbands in two-dimensional soft dielectrics, International Journal of Solids and Structures, Volumes 113–114, 15 May 2017, Pages 24-36, ISSN 0020-7683, https://doi.org/10.1016/j.ijsolstr.2016.10.002. (http://www.sciencedirect.com/science/article/pii/S0020768316302931)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77548
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:18 May 2017 16:24
Last Modified:03 Oct 2019 17:59

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