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Proceedings Paper

A physics-based model for actuation and sensing of ionic polymer metal composites
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Paper Abstract

In this paper, we propose a novel modeling framework to study quasi-static large deformations and electrochemistry of ionic polymer metal composites (IPMCs). The chemoelectromechanical constitutive behavior is obtained from a Helmholtz free energy density, which accounts for mechanical stretching, ion mixing, and electric polarization. The framework is specialized to plane bending of thin IPMCs through a structural model, where the bending moment of the IPMC is computed from a one-dimensional modified Poisson-Nernst-Planck system. For small static deformations, we establish a semianalytical solution based on the method of matched asymptotic expansions, which we ultimately use to elucidate the physics of IPMC sensing and actuation.

Paper Details

Date Published: 1 April 2015
PDF: 6 pages
Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 94300G (1 April 2015); doi: 10.1117/12.2083646
Show Author Affiliations
Youngsu Cha, New York Univ. Polytechnic School of Engineering (United States)
Maurizio Porfiri, New York Univ. Polytechnic School of Engineering (United States)


Published in SPIE Proceedings Vol. 9430:
Electroactive Polymer Actuators and Devices (EAPAD) 2015
Yoseph Bar-Cohen, Editor(s)

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