摘要
The dielectric elastomer(DE)has attracted significant attention due to its desired features,including large deformation,fast response,and high energy density.However,for a DE actuator(DEA)utilizing a snap-through deformation mode,most existing theoretical models fail to predict its deformation path.This paper develops a new finite element method(FEM)based on the three-parameter Gent-Gent model suitable for capturing strain-stiffening behaviors.The simulation results are verified by experiments,indicating that the FEM can accurately characterize the snap-through path of a DE.The method proposed in this paper provides theoretical guidance and inspiration for designing and applying DEs and bistable electroactive actuators.
基金
Project supported by the National Key Research and Development Program of China(No.2019YFB1311600)
the National Natural Science Foundation of China(Nos.11902248 and 52075411)
the Shaanxi Key Research and Development Program of China(No.2020ZDLGY06-11)
the State Key Laboratory for Strength and Vibration of Mechanical Structures of China(No.SV2018-KF-08)。
