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Proceedings Paper

Effect of viscoelastic relaxation on the electromechanical coupling of dielectric elastomer
Author(s): Bo Li; Hualing Chen; Junhua Qiang; Junjie Sheng; Jinxiong Zhou
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Paper Abstract

Dielectric elastomer is able to produce a large electromechanical deformation which is time-dependent and unstable due to the visco-hyper-elasticity. In the current study, we use a thermodynamic model to characterize the viscoelastic relaxation in the electromechanical deformation and instability of a viscoelastic dielectric. The parameters in the model were verified experimentally. We investigate the time-dependent mechanical deformation, electrical breakdown strength, polarization, and the electromechanical stability which are coupled by viscoelastic relaxation. The results show the electromechanical stability has strong time-dependence, due to the stress relaxation when the pre-stretch is applied.

Paper Details

Date Published: 9 April 2013
PDF: 14 pages
Proc. SPIE 8687, Electroactive Polymer Actuators and Devices (EAPAD) 2013, 86872T (9 April 2013); doi: 10.1117/12.2009322
Show Author Affiliations
Bo Li, National Univ. of Singapore (Singapore)
Hualing Chen, Xi'an Jiaotong Univ. (China)
Junhua Qiang, Xi'an Jiaotong Univ. (China)
Junjie Sheng, Xi'an Jiaotong Univ. (China)
Jinxiong Zhou, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 8687:
Electroactive Polymer Actuators and Devices (EAPAD) 2013
Yoseph Bar-Cohen, Editor(s)

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