Publication detail

Analysis of effect of domain polarization switching near sharp piezoelectric bi-material notches

HRSTKA, M. KOTOUL, M. PROFANT, T.

English title

Analysis of effect of domain polarization switching near sharp piezoelectric bi-material notches

Type

conference paper

Language

en

Original abstract

The asymptotic in-plane problem of a bi-material sharp notch with various geometrical pattern and an interface crack in a generally monoclinic piezoelectric bimaterial is analysed using the expanded Lekhnitskii-Eshelby-Stroh formalism, [1]. Assuming small-scale domain switching, the size and shape of the domain switching zone is calculated adopting the energetic switching criterion and micromechanical domain switching model suggested by Hwang et al., [2] for a specified material combination, geometry and polarization orientation. Next, the boundary value problem with the prescribed spontaneous strain and polarization within the switching domain is solved and their influence on the in-plane intensity of singularity at a vertex of the interface in piezoelectric bi-material-bonded joint or at the tip of interface crack is computed. The effects of geometrical and loading parameters on the resulting variation of the intensity of singularity are discussed.

English abstract

The asymptotic in-plane problem of a bi-material sharp notch with various geometrical pattern and an interface crack in a generally monoclinic piezoelectric bimaterial is analysed using the expanded Lekhnitskii-Eshelby-Stroh formalism, [1]. Assuming small-scale domain switching, the size and shape of the domain switching zone is calculated adopting the energetic switching criterion and micromechanical domain switching model suggested by Hwang et al., [2] for a specified material combination, geometry and polarization orientation. Next, the boundary value problem with the prescribed spontaneous strain and polarization within the switching domain is solved and their influence on the in-plane intensity of singularity at a vertex of the interface in piezoelectric bi-material-bonded joint or at the tip of interface crack is computed. The effects of geometrical and loading parameters on the resulting variation of the intensity of singularity are discussed.

Keywords in English

Polarization switching, Piezoelectricity, Bi-material notch, Asymptotic solution, Mixed FEM

Released

12.06.2023

Publisher

American Institute of Physics Inc.

Location

Melville, NY, USA

ISBN

9780735445482

ISSN

0094-243X

Book

20th International Conference on Fracture and Damage Mechanics, DM 2022

Volume

2848

Edition number

2848

Pages from–to

020004-1–020004-17

Pages count

17

BIBTEX


@inproceedings{BUT187830,
  author="Miroslav {Hrstka} and Michal {Kotoul} and Tomáš {Profant},
  title="Analysis of effect of domain polarization switching near sharp piezoelectric bi-material notches",
  booktitle="20th International Conference on Fracture and Damage Mechanics, DM 2022",
  year="2023",
  volume="2848",
  month="June",
  pages="020004-1--020004-17",
  publisher="American Institute of Physics Inc.",
  address="Melville, NY, USA",
  isbn="9780735445482",
  issn="0094-243X"
}