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

Youngsu Cha; Maurizio Porfiri

doi:10.1117/12.2083646

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

Youngsu Cha, Maurizio Porfiri

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Conference article › peer-review

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.

Original language	English (US)
Article number	94300G
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9430
Issue number	January
DOIs	https://doi.org/10.1117/12.2083646
State	Published - 2015
Event	Electroactive Polymer Actuators and Devices (EAPAD) 2015 - San Diego, United States Duration: Mar 9 2015 → Mar 12 2015

Keywords

Actuation
Poisson-Nernst-Planck
electroactive polymer
ionic polymer metal composite
perturbation method
physicsbased model
sensing

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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10.1117/12.2083646

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title = "A physics-based model for actuation and sensing of ionic polymer metal composites",

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.",

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AU - Porfiri, Maurizio

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AB - 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.

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KW - Poisson-Nernst-Planck

KW - electroactive polymer

KW - ionic polymer metal composite

KW - perturbation method

KW - physicsbased model

KW - sensing

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JO - Proceedings of SPIE - The International Society for Optical Engineering

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

Abstract

Keywords

ASJC Scopus subject areas

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