Electromechanics of polyurethane elastomers

Research output: Contribution to conferencePaper, not in proceedingpeer-review

Abstract

It is well known that electroactive polymers (EAP) deform under electric fields. An advantage of EAP is that it may undergo deformations much larger than those capable by electroactive ceramics, however at comparatively low forces. As common for polymers, EAP exhibit time-dependent material behavior, i.e. an electro-viscoelastic effect. In the modeling the deformation as well as the electric potential are introduced as global degrees of freedom, the internal variables accounting for the viscous response are incorporated at the so-called constitutive level. The proposed model is calibrated against experimental data, and a simple coupled finite element
example is studied to show the applicability of the finite deformation electro-viscoelastic formulation proposed.
Original languageEnglish
Number of pages5
Publication statusPublished - 2011
Event24th Nordic Seminar on Computational Mechanics, 2011 - Helsinki, Finland
Duration: 2011 Oct 32011 Oct 4
Conference number: 24

Seminar

Seminar24th Nordic Seminar on Computational Mechanics, 2011
Country/TerritoryFinland
CityHelsinki
Period2011/10/032011/10/04

Subject classification (UKÄ)

  • Mechanical Engineering

Keywords

  • electro-viscoelasticity
  • electrostriction

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