Abstract
In this paper, an expression for the permittivity of electro-active silicone undergoing largedeformation with high permittivity particles filled uniformly has been proposed.Two expressions are proposed for the permittivity, one based on experimentaltests and the other based on the theory of composite material. By applying thethermodynamic model incorporating linear dielectric permittivity and nonlinearhyperelastic performance, the mechanical performance and electromechanicalstability of the coupling system constituted by silicone filled with PMN–PT havebeen studied. The results show that the critical electric field decreases, namelythe stability performance of the system declines when the content of PMN–PTc(v) increases and the electrostrictive coefficients increase. The results are beneficial for us tounderstand deeply the influence of the filled particle on the stability performance of siliconeand to guide the design and manufacture of actuators and sensors based on dielectricelastomers.
Published Version
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