Electrotransport and deformation model of ion exchange membrane based actuators

Eniko T. Enikov, Bradley J. Nelson

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations


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 flow governed by Darcy's law.

Original languageEnglish (US)
Pages (from-to)129-139
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2000
EventSmart Structures and Materials 2000 - Electroactive Polymer Actuators and Devices (EAPAD) - Newport Beach, CA, USA
Duration: Mar 6 2000Mar 8 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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