Wilmers, J., McBride, A. and Bargmann, S. (2017) Interface elasticity effects in polymer-filled nanoporous metals. Journal of the Mechanics and Physics of Solids, 99, 163 - 177. (doi: 10.1016/j.jmps.2016.11.011)
|
Text
132556.pdf - Published Version Available under License Creative Commons Attribution Non-commercial No Derivatives. 1MB |
Abstract
A continuum formulation for electroactive composites made from nanoporous gold and ion-conducting polymer is proposed. A novel extension of surface elasticity theory is developed to account for the high surface-to-volume ratio of nanoporous gold, and to capture the chemoelectromechanical coupling that occurs on the interface between the metal and the polymer. This continuum formulation accounts for the fully non-linear behaviour exhibited by the composite. The balance of linear momentum, Gauß's flux theorem and a relation for the transport of charge carriers are introduced in the bulk material as well as on the interface to describe the non-linear multiphysics and highly coupled response of the actuator. The resulting system of non-linear equations is solved using the finite element method. A series of numerical examples is presented to elucidate the theory.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors gratefully acknowledge fi nancial support from the German Research Foundation (DFG) (Grant no. SFB 986) via SFB 986 “ M 3 ” , project B6. We also thank J. Markmann at Helmholtz-Zentrum Geesthacht (SFB 986, project B2) for very fruitful discussions. Furthermore, we thank the anonymous reviewers for their insightful comments that helped to considerably improve this paper. |
| Keywords: | Micromechanics. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | McBride, Professor Andrew |
| Authors: | Wilmers, J., McBride, A., and Bargmann, S. |
| College/School: | College of Science and Engineering > School of Engineering > Infrastructure and Environment |
| Journal Name: | Journal of the Mechanics and Physics of Solids |
| Publisher: | Elsevier |
| ISSN: | 0022-5096 |
| Published Online: | 22 November 2016 |
| Copyright Holders: | Copyright © 2016 The Authors |
| First Published: | First published in Journal of the Mechanics and Physics of Solids 99: 163-177 |
| Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record
Altmetric
Altmetric