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

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.

Citation Download Citation

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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