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

Lisa Mauck Weiland; Donald J. Leo

doi:10.1117/12.539556

26 July 2004 Applying a computational micromechanics model to the hypothesis of polarization response in ionic polymers

Lisa Mauck Weiland, Donald J. Leo

Author Affiliations +

Proceedings Volume 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control; (2004) https://doi.org/10.1117/12.539556
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

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Lisa Mauck Weiland and Donald J. Leo "Applying a computational micromechanics model to the hypothesis of polarization response in ionic polymers", Proc. SPIE 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control, (26 July 2004); https://doi.org/10.1117/12.539556

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