Thermo-chemo-electro-mechanical modeling of polyelectrolyte gels

Thomas Wallmersperger; Karsten Keller; Bernd Kröplin; Margarita Günther; Gerald Gerlach

doi:10.1117/12.847512

9 April 2010 Thermo-chemo-electro-mechanical modeling of polyelectrolyte gels

Thomas Wallmersperger, Karsten Keller, Bernd Kröplin, Margarita Günther, Gerald Gerlach

Author Affiliations +

Proceedings Volume 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010; 76421N (2010) https://doi.org/10.1117/12.847512
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Polyelectrolyte gels show adaptive viscoelastic characteristics. In water-based solutions they have enormous swelling capabilities under the influence of various possible stimulation types, such as chemical, electrical or thermal. In the present work a fully coupled 3-field formulation for polyelectrolyte gels using the Finite Element Method (FEM) is applied. This formulation consists of a chemical, electrical, and mechanical field equation. The mechanical field is coupled to the chemo-electrical field by a prescribed strain stemming from an osmotic pressure term. In experiments it has been proven that there is a large dependency between the applied temperature and the actual swelling degree of the gel. In the present research, the thermal stimulation is investigated. First, only the actual temperature is considered in the osmotic pressure term. Then, additionally, temperature-dependent material parameters obtained from experimental measurements are applied. The calibration of the numerical simulation is performed with experimental results available in literature.

Citation Download Citation

Thomas Wallmersperger, Karsten Keller, Bernd Kröplin, Margarita Günther, and Gerald Gerlach "Thermo-chemo-electro-mechanical modeling of polyelectrolyte gels", Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76421N (9 April 2010); https://doi.org/10.1117/12.847512

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