Volume 128, Number 3, November 2019
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||20 January 2020|
Electrical energy dissipation of dissipative dielectric elastomers
School of Aeronautics, Northwestern Polytechnical University - Xi'an, 710072, China
Received: 3 September 2019
Accepted: 20 November 2019
Dielectric elastomers (DEs) generate a large deformation under the external stimulation, while the electromechanical performances are strongly affected by the dissipative properties, such as viscoelasticity and leakage current. In this article, the input electrical energy for actuation and dissipation of DEs during the process of viscoelastic creep is investigated by utilizing a deduced dissipative model. Effect of the ratio N between resistor-capacitor time constant and viscoelastic relaxation time on the dissipative performances of DEs is also considered. The total current from the battery, the leakage current, the electrical power density and the electrical energy density of DEs with different values of N are respectively exhibited. The dissipation of electrical energy induced by the electrodes resistance is also included and investigated.
PACS: 77.55.-g – Dielectric thin films / 77.22.Gm – Dielectric loss and relaxation
© EPLA, 2020
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