Publication result detail

Crack propagation analysis in multilayer piezoelectric energy harvester

MACHŮ, Z.; MAJER, Z.; HADAŠ, Z.; ŠEVEČEK, O.

Original Title

Crack propagation analysis in multilayer piezoelectric energy harvester

English Title

Crack propagation analysis in multilayer piezoelectric energy harvester

Type

Paper in proceedings (conference paper)

Original Abstract

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.

English abstract

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.

Keywords

crack; piezoelectricity; energy harvester; multilayer structure; R-curve; weight function

Key words in English

crack; piezoelectricity; energy harvester; multilayer structure; R-curve; weight function

Authors

MACHŮ, Z.; MAJER, Z.; HADAŠ, Z.; ŠEVEČEK, O.

RIV year

2021

Released

19.06.2019

Publisher

Elsevier B.V.

Location

Brno

ISBN

9781713807575

Book

9th International Conference on Materials Structure and Micromechanics of Fracture (MSMF9)

Edition

1

ISBN

2452-3216

Periodical

Procedia Structural Integrity

Volume

23

State

Republic of Italy

Pages from

535

Pages to

540

Pages count

6

URL

https://www.sciencedirect.com/science/article/pii/S2452321620302080

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",
  series="1",
  journal="Procedia Structural Integrity",
  volume="23",
  number="1",
  pages="535--540",
  publisher="Elsevier B.V.",
  address="Brno",
  doi="10.1016/j.prostr.2020.01.141",
  isbn="9781713807575",
  issn="2452-3216",
  url="https://www.sciencedirect.com/science/article/pii/S2452321620302080"
}