Publication detail

Small-scale domain switching near sharp piezoelectric bi-material notches

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

English title

Small-scale domain switching near sharp piezoelectric bi-material notches

Type

journal article in Web of Science

Language

en

Original abstract

Assuming a scenario of small-scale domain switching, the dimensions and configuration of the domain switching region preceding a clearly defined primarily monoclinic piezoelectric bi-material notch are determined by embracing the energetic switching principle and micromechanical domain switching framework proposed by Hwang et al. (Acta Metall Mater 43(5):2073-2084, 1995. https://doi.org/10.1016/0956-7151(94)00379-V) for a given set of materials, structure, and polarization alignment. The piezoelectric bi-material under consideration comprises piezoelectric ceramics PZT-5H and BaTiO3. The analysis of the asymptotic in-plane field around a bi-material sharp notch is conducted utilizing the extended Lekhnitskii-Eshelby-Stroh formalism (Ting in Anisotropic elasticity, Oxford University Press. 1996. https://doi.org/10.1093/oso/9780195074475.001.0001). Subsequently, 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 the tip of interface crack is computed. The effects of the initial poling direction on the resulting variation of the energy release rates are discussed.

English abstract

Assuming a scenario of small-scale domain switching, the dimensions and configuration of the domain switching region preceding a clearly defined primarily monoclinic piezoelectric bi-material notch are determined by embracing the energetic switching principle and micromechanical domain switching framework proposed by Hwang et al. (Acta Metall Mater 43(5):2073-2084, 1995. https://doi.org/10.1016/0956-7151(94)00379-V) for a given set of materials, structure, and polarization alignment. The piezoelectric bi-material under consideration comprises piezoelectric ceramics PZT-5H and BaTiO3. The analysis of the asymptotic in-plane field around a bi-material sharp notch is conducted utilizing the extended Lekhnitskii-Eshelby-Stroh formalism (Ting in Anisotropic elasticity, Oxford University Press. 1996. https://doi.org/10.1093/oso/9780195074475.001.0001). Subsequently, 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 the tip of interface crack is computed. The effects of the initial poling direction on the resulting variation of the energy release rates are discussed.

Keywords in English

Small-scale domain switching; Bi-material piezoelectric sharp notch; Expanded Lekhnitskii-Eshelby-Stroh formalism; Two-state H-integral

Released

08.03.2025

Publisher

Springer Nature

Location

DORDRECHT

ISSN

0376-9429

Volume

250

Number

1

Pages from–to

1–30

Pages count

30

BIBTEX


@article{BUT197336,
  author="Miroslav {Hrstka} and Michal {Kotoul} and Tomáš {Profant} and Marta {Kianicová},
  title="Small-scale domain switching near sharp piezoelectric bi-material notches",
  year="2025",
  volume="250",
  number="1",
  month="March",
  pages="1--30",
  publisher="Springer Nature",
  address="DORDRECHT",
  issn="0376-9429"
}