Details
| Original language | English |
|---|---|
| Article number | 271 |
| Journal | Energies |
| Volume | 12 |
| Issue number | 2 |
| Publication status | Published - 2 Jan 2019 |
Abstract
This study employs the Element-Free Galerkin method (EFG) to characterize flexoelectricity in a composite material. The presence of the strain gradient term in the Partial Differential Equations (PDEs) requires C 1 continuity to describe the electromechanical coupling. The use of quartic weight functions in the developed model fulfills this prerequisite. We report the generation of electric polarization in a non-piezoelectric composite material through the inclusion-induced strain gradient field. The level set technique associated with the model supervises the weak discontinuity between the inclusion and matrix. The increased area ratio between the inclusion and matrix is found to improve the conversion of mechanical energy to electrical energy. The electromechanical coupling is enhanced when using softer materials for the embedding inclusions.
Keywords
- Composite, Flexoelectricity, Level set technique, Meshless method, Size effect
ASJC Scopus subject areas
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Energy(all)
- Energy Engineering and Power Technology
- Energy(all)
- Energy (miscellaneous)
- Mathematics(all)
- Control and Optimization
- Engineering(all)
- Electrical and Electronic Engineering
Sustainable Development Goals
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In: Energies, Vol. 12, No. 2, 271, 02.01.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Characterizing Flexoelectricity in Composite Material Using the Element-Free Galerkin Method
AU - He, Bo
AU - Javvaji, Brahmanandam
AU - Zhuang, Xiaoying
PY - 2019/1/2
Y1 - 2019/1/2
N2 - This study employs the Element-Free Galerkin method (EFG) to characterize flexoelectricity in a composite material. The presence of the strain gradient term in the Partial Differential Equations (PDEs) requires C 1 continuity to describe the electromechanical coupling. The use of quartic weight functions in the developed model fulfills this prerequisite. We report the generation of electric polarization in a non-piezoelectric composite material through the inclusion-induced strain gradient field. The level set technique associated with the model supervises the weak discontinuity between the inclusion and matrix. The increased area ratio between the inclusion and matrix is found to improve the conversion of mechanical energy to electrical energy. The electromechanical coupling is enhanced when using softer materials for the embedding inclusions.
AB - This study employs the Element-Free Galerkin method (EFG) to characterize flexoelectricity in a composite material. The presence of the strain gradient term in the Partial Differential Equations (PDEs) requires C 1 continuity to describe the electromechanical coupling. The use of quartic weight functions in the developed model fulfills this prerequisite. We report the generation of electric polarization in a non-piezoelectric composite material through the inclusion-induced strain gradient field. The level set technique associated with the model supervises the weak discontinuity between the inclusion and matrix. The increased area ratio between the inclusion and matrix is found to improve the conversion of mechanical energy to electrical energy. The electromechanical coupling is enhanced when using softer materials for the embedding inclusions.
KW - Composite
KW - Flexoelectricity
KW - Level set technique
KW - Meshless method
KW - Size effect
UR - http://www.scopus.com/inward/record.url?scp=85060533951&partnerID=8YFLogxK
U2 - 10.3390/en12020271
DO - 10.3390/en12020271
M3 - Article
AN - SCOPUS:85060533951
VL - 12
JO - Energies
JF - Energies
SN - 1996-1073
IS - 2
M1 - 271
ER -