Continuum model for converse flexoelectricity in a thin plate

0566215 - FZÚ 2024 RIV GB eng J - Článek v odborném periodiku
Yurkov, A. S. - Yudin, Petr
Continuum model for converse flexoelectricity in a thin plate.
International Journal of Engineering Science. Roč. 182, Jan (2023), č. článku 103771. ISSN 0020-7225. E-ISSN 1879-2197
Grant CEP: GA ČR(CZ) GA21-09685S; GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institucionální podpora: RVO:68378271
Klíčová slova: flexoelectricity * polarization * plate * bending
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 6.6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.ijengsci.2022.103771

Flexoelectricity the effect where inhomogeneous polarization causes deformation substitutes symmetry-forbidden piezoelectricity in nano-scale centrosymmetric materials. Its mathematical treatment in terms of continuum mechanics represents a challenge: correct models are subjects of debates during the past decades. In the present article we formulate a model with reasonable approximations for converse flexoelectric effect in a plate. Except for very specific boundary conditions the theory inevitably include nonclassical higher order terms. These are treated using variational calculus and are essentially reduced to a modification of the boundary conditions for the elastic variables.
Trvalý link: https://hdl.handle.net/11104/0349497