Details
| Original language | English |
|---|---|
| Title of host publication | Current Trends and Open Problems in Computational Mechanics |
| Publisher | Springer International Publishing AG |
| Pages | 593-606 |
| Number of pages | 14 |
| ISBN (electronic) | 9783030873127 |
| ISBN (print) | 9783030873110 |
| Publication status | Published - 13 Mar 2022 |
Abstract
Flexoelectricity is the polarization of dielectric materials under the gradient of strain. It is electromechanical coupling effect that manifests at micro/nanoscale. Flexoelectricity shares similarity to piezoelectricity, the linear polarization due to strain, but is also essentially different due to two facts. First is the size effects which is more prominent at nanoscale for flexoelectricity and the second the symmetries dislocation is different from piezoelectricity. Besides, under the dynamic loading, flexoelectric materials generate polarization waves having the magnitude proportional to the strain gradient, a phenomenon that is not observed in piezoelectric materials. It has a significant influence on the band-gap and dispersive behavior of meta-materials. Flexoelectricity has shown huge potentials in enabling technology such as self-powered nano devices and writing. Thus in the past decade, it has been intensively studied by various methodologies, theoretically and experimentally, from micro- to macroscopic continuum scale. In this report, we review the modeling of flexoelectricity at different length scales and current challenges remain to be solved. The characterization of flexoelectric coefficients from molecular dynamic simulation to continuum model remains the gap that needs to be bridged in a multiscale framework between different length-scales in flexolectric-based device modeling.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Computer Science(all)
- General Computer Science
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Current Trends and Open Problems in Computational Mechanics. Springer International Publishing AG, 2022. p. 593-606.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Computational Modelling of Flexoelectricity
T2 - State-of-the-art and Challenges
AU - Zhuang, Xiaoying
AU - Nguyen, Binh Huy
AU - Nanthakumar, Srivilliputtur Subbiah
AU - Javvaji, Brahmanandam
AU - Tran, Thai Quoc
N1 - The first author would like to acknowledge the Sofja Kovalevskaja Programme from AvH (hosted by Prof. Wriggers) and the ERC Starting Grant COTOFLEXI (802205).
PY - 2022/3/13
Y1 - 2022/3/13
N2 - Flexoelectricity is the polarization of dielectric materials under the gradient of strain. It is electromechanical coupling effect that manifests at micro/nanoscale. Flexoelectricity shares similarity to piezoelectricity, the linear polarization due to strain, but is also essentially different due to two facts. First is the size effects which is more prominent at nanoscale for flexoelectricity and the second the symmetries dislocation is different from piezoelectricity. Besides, under the dynamic loading, flexoelectric materials generate polarization waves having the magnitude proportional to the strain gradient, a phenomenon that is not observed in piezoelectric materials. It has a significant influence on the band-gap and dispersive behavior of meta-materials. Flexoelectricity has shown huge potentials in enabling technology such as self-powered nano devices and writing. Thus in the past decade, it has been intensively studied by various methodologies, theoretically and experimentally, from micro- to macroscopic continuum scale. In this report, we review the modeling of flexoelectricity at different length scales and current challenges remain to be solved. The characterization of flexoelectric coefficients from molecular dynamic simulation to continuum model remains the gap that needs to be bridged in a multiscale framework between different length-scales in flexolectric-based device modeling.
AB - Flexoelectricity is the polarization of dielectric materials under the gradient of strain. It is electromechanical coupling effect that manifests at micro/nanoscale. Flexoelectricity shares similarity to piezoelectricity, the linear polarization due to strain, but is also essentially different due to two facts. First is the size effects which is more prominent at nanoscale for flexoelectricity and the second the symmetries dislocation is different from piezoelectricity. Besides, under the dynamic loading, flexoelectric materials generate polarization waves having the magnitude proportional to the strain gradient, a phenomenon that is not observed in piezoelectric materials. It has a significant influence on the band-gap and dispersive behavior of meta-materials. Flexoelectricity has shown huge potentials in enabling technology such as self-powered nano devices and writing. Thus in the past decade, it has been intensively studied by various methodologies, theoretically and experimentally, from micro- to macroscopic continuum scale. In this report, we review the modeling of flexoelectricity at different length scales and current challenges remain to be solved. The characterization of flexoelectric coefficients from molecular dynamic simulation to continuum model remains the gap that needs to be bridged in a multiscale framework between different length-scales in flexolectric-based device modeling.
UR - http://www.scopus.com/inward/record.url?scp=85136545170&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-87312-7_57
DO - 10.1007/978-3-030-87312-7_57
M3 - Contribution to book/anthology
AN - SCOPUS:85136545170
SN - 9783030873110
SP - 593
EP - 606
BT - Current Trends and Open Problems in Computational Mechanics
PB - Springer International Publishing AG
ER -