9 April 2013 Effect of viscoelastic relaxation on the electromechanical coupling of dielectric elastomer
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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.
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Bo Li, Bo Li, Hualing Chen, Hualing Chen, Junhua Qiang, Junhua Qiang, Junjie Sheng, Junjie Sheng, Jinxiong Zhou, Jinxiong Zhou, } "Effect of viscoelastic relaxation on the electromechanical coupling of dielectric elastomer", Proc. SPIE 8687, Electroactive Polymer Actuators and Devices (EAPAD) 2013, 86872T (9 April 2013); doi: 10.1117/12.2009322; https://doi.org/10.1117/12.2009322
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