Electrotransport and deformation model of ion exchange membrane based actuators

被引:15
|
作者
Enikov, ET [1 ]
Nelson, BJ [1 ]
机构
[1] Univ Minnesota, Dept Engn Mech, Minneapolis, MN 55455 USA
关键词
Electroactive Polymers; ionic diffusion; Nernst-Planck Equations; Darcy's law;
D O I
10.1117/12.387771
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A continuum mechanical model of Nafion based metal-polymer actuators is presented. Global integral postulates are written for the conservation of mass, momentum: energy, and charge, Gauss' law, and the second law of thermodynamics. The global equations are then localized in the volume and on the material surfaces bounding the polymer. A finite element formulation is used to predict the evolution of the counter ion concentration, "free" water content, electric potential, and stress/strain during actuation. The model includes stress relaxation phenomena due to water how governed by Darcy's law.
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页码:129 / 139
页数:11
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