A theoretical framework for the study of compression sensing in ionic polymer metal composites

Valentina Volpini, Lorenzo Bardella, Andrea Rodella, Youngsu Cha, Maurizio Porfiri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ionic Polymer Metal Composites (IPMCs) are electro-responsive materials for sensing and actuation, consisting of an ion-exchange polymeric membrane with ionized units, plated within noble metal electrodes. In this work, we investigate the sensing response of IPMCs that are subject to a through-the-thickness compression, by specializing the continuum model introduced by Cha and Porfiri,1 to this one-dimensional problem. This model modifies the classical Poisson-Nernst-Plank system governing the electrochemistry in the absence of mechanical effects, by accounting for finite deformations underlying the actuation and sensing processes. With the aim of accurately describing the IPMC dynamic compressive behavior, we introduce a spatial asymmetry in the properties of the membrane, which must be accounted for to trigger a sensing response. Then, we determine an analytical solution by applying the singular perturbation theory, and in particular the method of matched asymptotic expansions. This solution shows a good agreement with experimental findings reported in literature.

Original languageEnglish (US)
Title of host publicationElectroactive Polymer Actuators and Devices (EAPAD) 2017
PublisherSPIE
Volume10163
ISBN (Electronic)9781510608115
DOIs
StatePublished - 2017
EventElectroactive Polymer Actuators and Devices (EAPAD) 2017 - Portland, United States
Duration: Mar 26 2017Mar 29 2017

Other

OtherElectroactive Polymer Actuators and Devices (EAPAD) 2017
CountryUnited States
CityPortland
Period3/26/173/29/17

Fingerprint

Ionic Polymer-metal Composite
Polymers
Compaction
Sensing
Compression
Metals
composite materials
Composite materials
polymers
actuation
metals
Ion exchange membranes
Polymeric membranes
Membrane
Electrochemistry
Precious metals
membranes
Singular Perturbation Theory
Ion Exchange
Matched Asymptotic Expansions

Keywords

  • electrochemistry
  • finite deformations
  • Ionic polymer metal composites
  • matched asymptotic ex-pansions
  • multiphysics
  • sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Volpini, V., Bardella, L., Rodella, A., Cha, Y., & Porfiri, M. (2017). A theoretical framework for the study of compression sensing in ionic polymer metal composites. In Electroactive Polymer Actuators and Devices (EAPAD) 2017 (Vol. 10163). [101630M] SPIE. https://doi.org/10.1117/12.2257361

A theoretical framework for the study of compression sensing in ionic polymer metal composites. / Volpini, Valentina; Bardella, Lorenzo; Rodella, Andrea; Cha, Youngsu; Porfiri, Maurizio.

Electroactive Polymer Actuators and Devices (EAPAD) 2017. Vol. 10163 SPIE, 2017. 101630M.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Volpini, V, Bardella, L, Rodella, A, Cha, Y & Porfiri, M 2017, A theoretical framework for the study of compression sensing in ionic polymer metal composites. in Electroactive Polymer Actuators and Devices (EAPAD) 2017. vol. 10163, 101630M, SPIE, Electroactive Polymer Actuators and Devices (EAPAD) 2017, Portland, United States, 3/26/17. https://doi.org/10.1117/12.2257361
Volpini V, Bardella L, Rodella A, Cha Y, Porfiri M. A theoretical framework for the study of compression sensing in ionic polymer metal composites. In Electroactive Polymer Actuators and Devices (EAPAD) 2017. Vol. 10163. SPIE. 2017. 101630M https://doi.org/10.1117/12.2257361
Volpini, Valentina ; Bardella, Lorenzo ; Rodella, Andrea ; Cha, Youngsu ; Porfiri, Maurizio. / A theoretical framework for the study of compression sensing in ionic polymer metal composites. Electroactive Polymer Actuators and Devices (EAPAD) 2017. Vol. 10163 SPIE, 2017.
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