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Multiscale analysis of the electromechanical coupling in dielectric elastomers

Cohen, Noy and deBotton, Gal (2014) Multiscale analysis of the electromechanical coupling in dielectric elastomers. European Journal of Mechanics - A/Solids, 48 . pp. 48-59. ISSN 0997-7538.

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The coupled electromechanical response of dielectrics is analyzed in terms of the local response and the distribution of its microstructural unit elements. A comparison between two variational statements for a continuous and a discrete systems results in an estimate for the macroscopic coupled electromechanical energy-density function. Next, a few types of unit elements are considered and the corresponding behaviors of dielectrics with a random distribution of these elements are calculated. Additionally, to highlight the possible effect of local constraints among the unit elements, a deterministic model for a network of polymer chains is proposed and its response to electric excitation is determined. The practically common case of a uniaxial stretch aligned with the electric field is examined in detail and the results are compared with widely accepted macroscopic models and available experimental results.

Item Type:Article
Related URLs:
URLURL TypeDescription
Cohen, Noy0000-0003-2224-640X
deBotton, Gal0000-0003-3608-1896
Additional Information:© 2014 Elsevier Masson SAS. Received 8 October 2013, Accepted 26 February 2014, Available online 13 April 2014. This work was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities (grant 1246/11).
Funding AgencyGrant Number
Israel Science FoundationUNSPECIFIED
Israel Academy of Sciences and Humanities1246/11
Subject Keywords:Dielectric elastomers; Variational principles; Multi-scale analysis
Record Number:CaltechAUTHORS:20161109-105745482
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Official Citation:Noy Cohen, Gal deBotton, Multiscale analysis of the electromechanical coupling in dielectric elastomers, European Journal of Mechanics - A/Solids, Volume 48, November–December 2014, Pages 48-59, ISSN 0997-7538, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71882
Deposited By: Ruth Sustaita
Deposited On:09 Nov 2016 20:13
Last Modified:03 Oct 2019 16:12

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