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Proceedings Paper

Applying a computational micromechanics model to the hypothesis of polarization response in ionic polymers
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Paper Abstract

It has recently been theorized that the initial fast electro-mechanical response of ionic-polymer-metal composites (IPMCs) may be due to a polarization mechanism, while transport dominates the relaxation response. In order to investigate this hypothesis, a computational micromechanics model has been developed to model polarization response in these ionomeric transducers. Assuming a constant solvated state, the model tracks the rotation of individual dipoles within a given cluster in response to dipole-dipole interaction, mechanical stiffness of the pendant chain, and external electrical field loading. Once the system of dipoles reaches equilibrium in response to loading, net polarization/distortion response is recorded. Actuation predictions using the polarization model are consistent with the experimentally observed fast response of these materials.

Paper Details

Date Published: 26 July 2004
PDF: 12 pages
Proc. SPIE 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control, (26 July 2004); doi: 10.1117/12.539556
Show Author Affiliations
Lisa Mauck Weiland, Virginia Polytechnic Institute and State Univ. (United States)
Donald J. Leo, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 5383:
Smart Structures and Materials 2004: Modeling, Signal Processing, and Control
Ralph C. Smith, Editor(s)

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