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An electromechanically coupled micro-sphere framework: application to the finite element analysis of electrostrictive polymers

Thylander, Sara LU ; Menzel, Andreas LU and Ristinmaa, Matti LU (2012) In Smart Materials and Structures 21(9).
Abstract
The number of industrial applications of electroactive polymers (EAPs) is increasing and, consequently, the need for reliable modelling frameworks for such materials as well as related robust simulation techniques continuously increases. In this context, we combine the modelling of non-linear electroelasticity with a computational micro-sphere formulation in order to simulate the behaviour of EAPs. The micro-sphere approach in general enables the use of physics-based constitutive models like, for instance, the so-called worm-like chain model. By means of the micro-sphere formulation, scalar-valued micromechanical constitutive relations can conveniently be extended to a three-dimensional continuum setting. We discuss several... (More)
The number of industrial applications of electroactive polymers (EAPs) is increasing and, consequently, the need for reliable modelling frameworks for such materials as well as related robust simulation techniques continuously increases. In this context, we combine the modelling of non-linear electroelasticity with a computational micro-sphere formulation in order to simulate the behaviour of EAPs. The micro-sphere approach in general enables the use of physics-based constitutive models like, for instance, the so-called worm-like chain model. By means of the micro-sphere formulation, scalar-valued micromechanical constitutive relations can conveniently be extended to a three-dimensional continuum setting. We discuss several electromechanically coupled numerical examples and make use of the finite element method to solve inhomogeneous boundary value problems. The incorporated material parameters are referred to experimental data for an electrostrictive polymer. The numerical examples show that the coupled micro-sphere formulation combined with the finite element method results in physically sound simulations that mimic the behaviour of an electrostrictive polymer. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
non-linear electroelasticity, electroactive polymers, smart materials, finite element formulation, coupled micro-sphere framework
in
Smart Materials and Structures
volume
21
issue
9
publisher
IOP Publishing
external identifiers
  • wos:000308867900009
  • scopus:84865960638
ISSN
0964-1726
DOI
10.1088/0964-1726/21/9/094008
language
English
LU publication?
yes
id
8462f99b-c1dd-405b-9003-0e74b21842d7 (old id 3048417)
date added to LUP
2012-09-06 11:08:07
date last changed
2017-03-05 04:17:28
@article{8462f99b-c1dd-405b-9003-0e74b21842d7,
  abstract     = {The number of industrial applications of electroactive polymers (EAPs) is increasing and, consequently, the need for reliable modelling frameworks for such materials as well as related robust simulation techniques continuously increases. In this context, we combine the modelling of non-linear electroelasticity with a computational micro-sphere formulation in order to simulate the behaviour of EAPs. The micro-sphere approach in general enables the use of physics-based constitutive models like, for instance, the so-called worm-like chain model. By means of the micro-sphere formulation, scalar-valued micromechanical constitutive relations can conveniently be extended to a three-dimensional continuum setting. We discuss several electromechanically coupled numerical examples and make use of the finite element method to solve inhomogeneous boundary value problems. The incorporated material parameters are referred to experimental data for an electrostrictive polymer. The numerical examples show that the coupled micro-sphere formulation combined with the finite element method results in physically sound simulations that mimic the behaviour of an electrostrictive polymer.},
  articleno    = {094008},
  author       = {Thylander, Sara and Menzel, Andreas and Ristinmaa, Matti},
  issn         = {0964-1726},
  keyword      = {non-linear electroelasticity,electroactive polymers,smart materials,finite element formulation,coupled micro-sphere framework},
  language     = {eng},
  number       = {9},
  publisher    = {IOP Publishing},
  series       = {Smart Materials and Structures},
  title        = {An electromechanically coupled micro-sphere framework: application to the finite element analysis of electrostrictive polymers},
  url          = {http://dx.doi.org/10.1088/0964-1726/21/9/094008},
  volume       = {21},
  year         = {2012},
}