Influence of initial misfit strains on small scale domain switching ahead of interface crack between piezoelectric layer and dielectric isotropic substrate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0201455" target="_blank" >RIV/00216305:26210/26:0201455 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2452321626001514" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321626001514</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2026.02.046" target="_blank" >10.1016/j.prostr.2026.02.046</a>
Alternative languages
Result language
angličtina
Original language name
Influence of initial misfit strains on small scale domain switching ahead of interface crack between piezoelectric layer and dielectric isotropic substrate
Original language description
his study derives the effect of discontinuous initial strain distributions on the small-scale domain switching ahead of the bi-material notch formed between a piezoelectric layer and dielectric isotropic substrate. As a piezoelectric layer the piezoelectric ceramics PZT-5H grown on the elastic substrate formed by amorphous silicon dioxide (SiO 2) is considered. The energetic switching principle and micromechanical domain switching framework proposed by Hwang et al. (1995) is applied. The initial thermal misfit constant strain is included in the constitutive relations. The analysis of the asymptotic in-plane field of the bi-material notch is conducted utilizing the extended Lekhnitskii-Eshelby-Stroh formalism. The asymptotic in-plane field is used to predict the domain switching zone applying the energy-based criterion. The influence of the thermal misfit strain on the size and shape of the switching zone in the piezoelectric layer is computed for various initial poling directions.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20300 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EH22_008%2F0004634" target="_blank" >EH22_008/0004634: Mechanical engineering of biological and bio-inspired systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2026
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů