Micromechanical modelling of switching phenomena in polycrystalline piezoceramics: application of a polygonal finite element approach
(2011) In Computational Mechanics 48(4). p.421-435- Abstract
- A micromechanically motivated model is proposed to capture nonlinear effects and switching phenomena present in ferroelectric polycrystalline materials. The changing remnant state of the ferroelectric crystal is accounted for by means of so-called back fields-such as back stresses-to resist or assist further switching processes in the crystal depending on the local loading history. To model intergranular effects present in ferroelectric polycrystals, the computational model elaborated is embedded into a mixed polygonal finite element approach, whereby an individual ferroelectric grain is represented by one single irregular polygonal finite element. This computationally efficient coupled simulation framework is shown to reproduce the... (More)
- A micromechanically motivated model is proposed to capture nonlinear effects and switching phenomena present in ferroelectric polycrystalline materials. The changing remnant state of the ferroelectric crystal is accounted for by means of so-called back fields-such as back stresses-to resist or assist further switching processes in the crystal depending on the local loading history. To model intergranular effects present in ferroelectric polycrystals, the computational model elaborated is embedded into a mixed polygonal finite element approach, whereby an individual ferroelectric grain is represented by one single irregular polygonal finite element. This computationally efficient coupled simulation framework is shown to reproduce the specific characteristics of the responses of ferroelectric polycrystals under complex electromechanical loading conditions in good agreement with experimental observations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2212875
- author
- Kaliappan, Jayabal ; Menzel, Andreas LU ; A., Arockiarajan and S.M., Srinivasan
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ferroelectrics, Switching, Micromechanical modelling, Back fields, Polygonal finite elements
- in
- Computational Mechanics
- volume
- 48
- issue
- 4
- pages
- 421 - 435
- publisher
- Springer
- external identifiers
-
- wos:000295849700003
- scopus:80052963560
- ISSN
- 0178-7675
- DOI
- 10.1007/s00466-011-0595-4
- language
- English
- LU publication?
- yes
- id
- 7f28f485-145d-473c-9c78-ec5195f27893 (old id 2212875)
- date added to LUP
- 2016-04-01 10:23:29
- date last changed
- 2022-04-12 05:49:08
@article{7f28f485-145d-473c-9c78-ec5195f27893,
abstract = {{A micromechanically motivated model is proposed to capture nonlinear effects and switching phenomena present in ferroelectric polycrystalline materials. The changing remnant state of the ferroelectric crystal is accounted for by means of so-called back fields-such as back stresses-to resist or assist further switching processes in the crystal depending on the local loading history. To model intergranular effects present in ferroelectric polycrystals, the computational model elaborated is embedded into a mixed polygonal finite element approach, whereby an individual ferroelectric grain is represented by one single irregular polygonal finite element. This computationally efficient coupled simulation framework is shown to reproduce the specific characteristics of the responses of ferroelectric polycrystals under complex electromechanical loading conditions in good agreement with experimental observations.}},
author = {{Kaliappan, Jayabal and Menzel, Andreas and A., Arockiarajan and S.M., Srinivasan}},
issn = {{0178-7675}},
keywords = {{Ferroelectrics; Switching; Micromechanical modelling; Back fields; Polygonal finite elements}},
language = {{eng}},
number = {{4}},
pages = {{421--435}},
publisher = {{Springer}},
series = {{Computational Mechanics}},
title = {{Micromechanical modelling of switching phenomena in polycrystalline piezoceramics: application of a polygonal finite element approach}},
url = {{http://dx.doi.org/10.1007/s00466-011-0595-4}},
doi = {{10.1007/s00466-011-0595-4}},
volume = {{48}},
year = {{2011}},
}