Detail publikace
Crack propagation analysis in multilayer piezoelectric energy harvester
MACHŮ, Z. MAJER, Z. HADAŠ, Z. ŠEVEČEK, O.
Anglický název
Crack propagation analysis in multilayer piezoelectric energy harvester
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
In this work, a special multilayer piezoelectric cantilever energy harvester with active piezo-electric and protective ceramic layers is suggested and studied. Fracture mechanics behavior of such a layered structure is analyzed by means of the analytical model. Namely, the resistance of the structure to propagation of surface cracks upon harmonic vibrations is studied. The apparent fracture toughness of the laminate (which takes thermal residual stresses induced from processing into account) is calculated using the weight function method. The maximal allowable acceleration of the beam´s clamped end, which is applied upon a given forcing frequency and which warrants that the potential surface cracks will not propagate through the multilayer structure, is determined for a suggested configuration of the energy harvester.
Anglický abstrakt
In this work, a special multilayer piezoelectric cantilever energy harvester with active piezo-electric and protective ceramic layers is suggested and studied. Fracture mechanics behavior of such a layered structure is analyzed by means of the analytical model. Namely, the resistance of the structure to propagation of surface cracks upon harmonic vibrations is studied. The apparent fracture toughness of the laminate (which takes thermal residual stresses induced from processing into account) is calculated using the weight function method. The maximal allowable acceleration of the beam´s clamped end, which is applied upon a given forcing frequency and which warrants that the potential surface cracks will not propagate through the multilayer structure, is determined for a suggested configuration of the energy harvester.
Klíčová slova anglicky
crack; piezoelectricity; energy harvester; multilayer structure; R-curve; weight function
Vydáno
19.06.2019
Nakladatel
Elsevier B.V.
Místo
Brno
ISBN
9781713807575
ISSN
2452-3216
Kniha
9th International Conference on Materials Structure and Micromechanics of Fracture (MSMF9)
Ročník
23
Číslo edice
1
Strany od–do
535–540
Počet stran
6
BIBTEX
@inproceedings{BUT171255,
author="Zdeněk {Machů} and Zdeněk {Majer} and Zdeněk {Hadaš} and Oldřich {Ševeček},
title="Crack propagation analysis in multilayer piezoelectric energy harvester",
booktitle="9th International Conference on Materials Structure and Micromechanics of Fracture (MSMF9)",
year="2019",
volume="23",
month="June",
pages="535--540",
publisher="Elsevier B.V.",
address="Brno",
isbn="9781713807575",
issn="2452-3216"
}