Dielectric elastomer bending actuator: experiment and theoretical analysis

Jinrong Li; Liwu Liu; Yanju Liu; Jinsong Leng

doi:10.1117/12.2045092

10 April 2014 Dielectric elastomer bending actuator: experiment and theoretical analysis

Jinrong Li, Liwu Liu, Yanju Liu, Jinsong Leng

Proceedings Volume 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014; 905639 (2014) https://doi.org/10.1117/12.2045092
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Dielectric elastomer is a kind of smart soft material that has many advantages such as large deformation, fast response, light weight and easy synthesis. Subject to a high voltage, dielectric elastomer film will deform sustainably. These features make dielectric elastomer a suitable material for actuators. This paper discussed a spring-roll bending actuator of dielectric elastomer. An actuator based on dielectric elastomer that could bend when applied a high voltage was fabricated. Based on thermodynamics theories, a theoretical model of dielectric elastomer bending actuator was established and the initial deformation and bending deformation of bending actuator was formulated. Most parameters used in formulas could be obtained from fabrication process or test data and theoretical prediction with these parameters explained the experimental phenomena well. Also, the allowable area of bending actuator is determined considering several failure models including electromechanical instability, electrical breakdown and tensile rupture.

Citation Download Citation

Jinrong Li, Liwu Liu, Yanju Liu, and Jinsong Leng "Dielectric elastomer bending actuator: experiment and theoretical analysis", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 905639 (10 April 2014); https://doi.org/10.1117/12.2045092

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