Dielectric elastomers – numerical modeling of nonlinear visco‐electroelasticity | Zendy

Büschel A. | Zendy; Klinkel S. | Zendy; Wagner W. | Zendy

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Dielectric elastomers – numerical modeling of nonlinear visco‐electroelasticity

Author(s) -

Büschel A.,

Klinkel S.,

Wagner W.

Publication year - 2012

Publication title -

international journal for numerical methods in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.421

H-Index - 168

eISSN - 1097-0207

pISSN - 0029-5981

DOI - 10.1002/nme.4409

Subject(s) - dielectric elastomers , dielectric , elastomer , viscoelasticity , materials science , nonlinear system , electroactive polymers , actuator , finite element method , elasticity (physics) , displacement (psychology) , electric field , composite material , mechanics , polymer , structural engineering , engineering , physics , electrical engineering , psychology , optoelectronics , quantum mechanics , psychotherapist

SUMMARY Dielectric elastomer actuators that can directly turn electrical energy into mechanical energy belong to the group of electroactive polymers. This type of electroelastic material exhibits large displacement characteristics and is able to change its mechanical behavior in response to the application of an electric field. Dielectric actuators are made out of elastomers which in general show viscoelastic behavior. To take this time dependent effect into account, the deformation gradient is multiplicatively decomposed. The paper is focused on the numerical modeling of soft dielectric elastomers. The theoretical foundation and the consistent finite element implementation is outlined based on the laws of electricity and elasticity. Furthermore, numerical examples of the nonlinear visco‐electroelasticity model are shown. Copyright © 2012 John Wiley & Sons, Ltd.

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