Description

Constant mechanical load offers stabilization in the electromechanical deformation of dielectric elastomer. Because of the viscoelasticity, the electromechanical coupling of dielectric elastomer evolves under a pair of dead loads. The evolutionary paths of electromechanical stability are classified and investigated, where a transformation, from unstable to stable, is identified. Under the proposed theoretical model, the critical time and critical load on the transformation is determined, providing a path forward for improving performance of dielectric elastomer based actuators.

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Evolutionary electromechanical stability in viscoelastic dielectrics under constant loads

Constant mechanical load offers stabilization in the electromechanical deformation of dielectric elastomer. Because of the viscoelasticity, the electromechanical coupling of dielectric elastomer evolves under a pair of dead loads. The evolutionary paths of electromechanical stability are classified and investigated, where a transformation, from unstable to stable, is identified. Under the proposed theoretical model, the critical time and critical load on the transformation is determined, providing a path forward for improving performance of dielectric elastomer based actuators.