Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Electromechanics of polyurethane elastomers

Ask, Anna LU ; Ristinmaa, Matti LU orcid ; Menzel, Andreas LU and Denzer, Ralf LU (2011)
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... (More)
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. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
electro-viscoelasticity, electrostriction
pages
5 pages
language
English
LU publication?
yes
id
9f6ed75e-2019-464c-bc52-3e913f00a8b9 (old id 2204113)
date added to LUP
2016-04-04 14:39:20
date last changed
2018-11-21 21:21:32
@misc{9f6ed75e-2019-464c-bc52-3e913f00a8b9,
  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<br/><br>
example is studied to show the applicability of the finite deformation electro-viscoelastic formulation proposed.},
  author       = {Ask, Anna and Ristinmaa, Matti and Menzel, Andreas and Denzer, Ralf},
  language     = {eng},
  title        = {Electromechanics of polyurethane elastomers},
  year         = {2011},
}