Two models to simulate rate-dependent domain switching effects - application to ferroelastic polycrystalline ceramics
(2008) In Smart Materials and Structures 17.- Abstract
- The aim of this paper is to study rate-dependent switching in ferroelastic materials. More specifically, a micro-mechanically motivated model is embedded into an iterative three-dimensional and electromechanically coupled finite element framework. An established energy-based criterion serves for the initiation of domain switching processes as based on reduction in (local) Gibbs free energy. Subsequent nucleation and propagation of domain walls is captured via a linear kinetics theory with rate-dependent effects being incorporated in terms of a deformation-dependent limit-time-parameter. With this basic model in hand, two different switching formulations are elaborated in this work: on the one hand, a straightforward volume-fraction-ansatz... (More)
- The aim of this paper is to study rate-dependent switching in ferroelastic materials. More specifically, a micro-mechanically motivated model is embedded into an iterative three-dimensional and electromechanically coupled finite element framework. An established energy-based criterion serves for the initiation of domain switching processes as based on reduction in (local) Gibbs free energy. Subsequent nucleation and propagation of domain walls is captured via a linear kinetics theory with rate-dependent effects being incorporated in terms of a deformation-dependent limit-time-parameter. With this basic model in hand, two different switching formulations are elaborated in this work: on the one hand, a straightforward volume-fraction-ansatz is applied with the volume-fraction-value depending on the limit-time-parameter; on the other hand, a reorientation-transformation-formulation is proposed, whereby the orientation tensor itself is assumed to depend on the limit-time-parameter. Macroscopic behaviour such as stress versus strains curves or stress versus electrical displacements graphs are obtained by applying straightforward volume-averaging-techniques to the three-dimensional finite-element-based simulation results which provides important insights into the rate-dependent response of the investigated ferroelastic materials. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1515233
- author
- Menzel, Andreas LU ; Arockiarajan, A and Sivakumar, S M
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Smart Materials and Structures
- volume
- 17
- article number
- 015026
- publisher
- IOP Publishing
- external identifiers
-
- wos:000254176200027
- scopus:41849092277
- ISSN
- 0964-1726
- DOI
- 10.1088/0964-1726/17/01/015026
- language
- English
- LU publication?
- yes
- id
- 7c959254-b3ab-46fb-b089-b38af680148b (old id 1515233)
- date added to LUP
- 2016-04-01 13:03:56
- date last changed
- 2022-01-27 17:06:33
@article{7c959254-b3ab-46fb-b089-b38af680148b,
abstract = {{The aim of this paper is to study rate-dependent switching in ferroelastic materials. More specifically, a micro-mechanically motivated model is embedded into an iterative three-dimensional and electromechanically coupled finite element framework. An established energy-based criterion serves for the initiation of domain switching processes as based on reduction in (local) Gibbs free energy. Subsequent nucleation and propagation of domain walls is captured via a linear kinetics theory with rate-dependent effects being incorporated in terms of a deformation-dependent limit-time-parameter. With this basic model in hand, two different switching formulations are elaborated in this work: on the one hand, a straightforward volume-fraction-ansatz is applied with the volume-fraction-value depending on the limit-time-parameter; on the other hand, a reorientation-transformation-formulation is proposed, whereby the orientation tensor itself is assumed to depend on the limit-time-parameter. Macroscopic behaviour such as stress versus strains curves or stress versus electrical displacements graphs are obtained by applying straightforward volume-averaging-techniques to the three-dimensional finite-element-based simulation results which provides important insights into the rate-dependent response of the investigated ferroelastic materials.}},
author = {{Menzel, Andreas and Arockiarajan, A and Sivakumar, S M}},
issn = {{0964-1726}},
language = {{eng}},
publisher = {{IOP Publishing}},
series = {{Smart Materials and Structures}},
title = {{Two models to simulate rate-dependent domain switching effects - application to ferroelastic polycrystalline ceramics}},
url = {{http://dx.doi.org/10.1088/0964-1726/17/01/015026}},
doi = {{10.1088/0964-1726/17/01/015026}},
volume = {{17}},
year = {{2008}},
}