Volume 120, Number 6, December 2017
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||26 February 2018|
Effect of constrained fibers on electromechanical actuation of charge-controlled dielectric elastomers
1 School of Mechanical Engineering, Xi'an Jiaotong University - Xi'an, 710049, China
2 State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University - Xi'an, 710049, China
3 State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University Xi'an, 710049, China
Received: 11 December 2017
Accepted: 13 February 2018
As is known, electromechanical deformation of voltage-controlled dielectric elastomers (DEs) is significant but is susceptible to pull-in and snap-through instabilities, while the large stable deformation can be achieved by spraying charge on DE surfaces, i.e., charge-controlled DEs. In this article, we investigate the effect of constrained fibers on electromechanical actuation of charge-controlled DEs by involving two special deformation modes: uniaxial tension and pure shear state. The coupled effects between the geometrical sizes and the mechanical tensile force of the charge-controlled DEs are also explored. The research results indicate that, different from voltage-controlled DEs, the electromechanical stretch of charge-controlled DEs with constrained fibers does not always show a beneficial merit with respect to that of the charge-controlled DEs without constrained fibers.
PACS: 77.55.-g – Dielectric thin films / 77.84.Jd – Polymers; organic compounds
© EPLA, 2018
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