Modeling of electromechanical response and fracture resistance of multilayer piezoelectric energy harvester with residual stresses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU136928" target="_blank" >RIV/00216305:26210/20:PU136928 - isvavai.cz</a>

Result on the web

<a href="https://journals.sagepub.com/doi/full/10.1177/1045389X20942832" target="_blank" >https://journals.sagepub.com/doi/full/10.1177/1045389X20942832</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/1045389X20942832" target="_blank" >10.1177/1045389X20942832</a>

Result language

angličtina

Original language name

Modeling of electromechanical response and fracture resistance of multilayer piezoelectric energy harvester with residual stresses

Original language description

The article focuses on a modeling and subsequent optimization of a novel layered architecture of the vibration piezoceramic energy harvester composed of ZrO2/Al2O3/BaTiO(3)layers and containing thermal residual stresses. The developed analytical/numerical model allows to determine the complete electromechanical response and the apparent fracture toughness of the multilayer vibration energy harvester, upon consideration of thermal residual stresses and time-harmonic kinematic excitation. The derived model uses the Euler-Bernoulli beam theory, Hamilton's variational principle, and a classical laminate theory to determine the first natural frequency, steady-state electromechanical response of the beam upon harmonic vibrations, and also the mechanical stresses within particular layers of the harvester. The laminate apparent fracture toughness is computed by means of the weight function approach. A crucial point is the further optimization of the layered architecture from both the electromechanical response and the fracture resistance point of view. Maximal allowable excitation acceleration of the harvester upon which the piezoelectric layer will not fail is determined. It makes possible to better use the harvester's capabilities in a given application and simultaneously guarantee its safe operation. Outputs of the derived analytical model were validated with finite element method simulations and available experimental results, and a good agreement between all approaches was obtained.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES

ISSN

1045-389X

e-ISSN

1530-8138

Volume of the periodical

31

Issue of the periodical within the volume

19

Country of publishing house

GB - UNITED KINGDOM

Number of pages

27

Pages from-to

2261-2287

UT code for WoS article

000559358100001

EID of the result in the Scopus database

2-s2.0-85088839265