Modelling of viscoelastic dielectric elastomers with deformation dependent electric properties

被引：33
作者：
Ask, Anna [1 ]
Menzel, Andreas [1 ,2 ]
Ristinmaa, Matti [1 ]
机构：
[1] Lund Univ, Div Solid Mech, POB 118, SE-22100 Lund, Sweden
[2] TU Dortmund, Dept Mech Engn, Inst Mech, D-44227 Dortmund, Germany
来源：
IUTAM SYMPOSIUM ON MECHANICS OF SOFT ACTIVE MATERIALS | 2015年
关键词：
Electromechanics; Coupled problems; Finite strain; Viscoelastic materials; Electrostriction; ELECTROSTRICTION; PERFORMANCE;
D O I：
10.1016/j.piutam.2014.12.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work deals with electro-viscoelastic modelling and simulation of dielectric elastomer actuators (DEA), including the case of deformation dependent electromechanical coupling. A large deformation modelling framework is adopted, and specific thermodynamically consistent material models are established. The general framework is applied to VHB49 polyacrylic polymers which are commonly used in DEA applications. The effects of viscosity and deformation dependent electric permittivity are studied with regards to the stability behaviour and also in view of predicting experimentally observed electromechanical behaviour using numerical simulations. (C) 2014 The Authors. Published by Elsevier B.V.
引用
收藏
页码：134 / 144
页数：11
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