Mehnert, M., Hossain, M. and Steinmann, P. (2016) On nonlinear thermo-electro-elasticity. Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 472(2190), 20160170. (doi: 10.1098/rspa.2016.0170) (PMID:27436985) (PMCID:PMC4950209)
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Abstract
Electro-active polymers (EAPs) for large actuations are nowadays well-known and promising candidates for producing sensors, actuators and generators. In general, polymeric materials are sensitive to differential temperature histories. During experimental characterizations of EAPs under electro-mechanically coupled loads, it is difficult to maintain constant temperature not only because of an external differential temperature history but also because of the changes in internal temperature caused by the application of high electric loads. In this contribution, a thermo-electro-mechanically coupled constitutive framework is proposed based on the total energy approach. Departing from relevant laws of thermodynamics, thermodynamically consistent constitutive equations are formulated. To demonstrate the performance of the proposed thermo-electro-mechanically coupled framework, a frequently used non-homogeneous boundary-value problem, i.e. the extension and inflation of a cylindrical tube, is solved analytically. The results illustrate the influence of various thermo-electro-mechanical couplings.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors acknowledge funding within DFG project no. STE 544/52-1. M.H. and P.S. would like to express their sincere gratitude for the funding by the ERC within the Advanced Grant project MOCOPOLY. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Steinmann, Professor Paul |
| Authors: | Mehnert, M., Hossain, M., and Steinmann, P. |
| College/School: | College of Science and Engineering > School of Engineering > Infrastructure and Environment |
| Journal Name: | Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences |
| Publisher: | The Royal Society |
| ISSN: | 1364-5021 |
| ISSN (Online): | 1471-2946 |
| Published Online: | 01 June 2016 |
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