Snap-through path in a bistable dielectric elastomer actuator

doi:10.1007/s10483-022-2888-6

Abstract

Abstract: 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.

Key words: dielectric elastomer actuator (DEA), snap-through, bistable, finite element method (FEM), strain-stiffening behavior

2010 MSC Number:

74H45
65P40

Wenjie SUN, Wentao MA, Fei ZHANG, Wei HONG, Bo LI. Snap-through path in a bistable dielectric elastomer actuator. Applied Mathematics and Mechanics (English Edition), 2022, 43(8): 1159-1170.

TrendMD

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