The Electromechanical Behavior of Dielectric Elastomer Actuator Stiffened by Fiber
Dielectric elastomer is functional material that can convert electrical energy to mechanical energy. In this paper, a cylindrical dielectric elastomer actuator was designed and fabricated by using fiber stiffening to improve its electromechanical performance. the effects of pre-straining, rate of applied voltage and fiber stiffening on the electromechanical behavior were investigated by the experiments. It was found that the best applied load for pre-straining was 524g based on the electromechanical tests at the applied voltage rate of 10V/s. The maximum actuated strain decreased with an increase in rate of applied voltage. When the fibers were embedded in the dielectric elastomer actuator, the maximum actuated strain was 27.5%, doubled the value of 14% without fiber stiffening at the applied voltage rate of 20V/s.
L. Z. Lyu and S. J. Zhu, "The Electromechanical Behavior of Dielectric Elastomer Actuator Stiffened by Fiber", Key Engineering Materials, Vol. 765, pp. 12-15, 2018