Autor(es):
de Almeida, Vinicius Augusto Dare [UNESP] ; Baptista, Fabricio Guimarães [UNESP]
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/200342
Origem: Oasisbr
Assunto(s): Electromechanical impedance; EMI; Pencil lead break; Piezoceramics; PLB; PZT; SHM; Structural health monitoring; Electromechanical impedance; Electromechanical impedance; EMI; EMI; Pencil lead break; Pencil lead break; Piezoceramics; Piezoceramics; PLB; PLB; PZT; PZT; SHM; SHM; Structural health monitoring; Structural health monitoring
Descrição
Made available in DSpace on 2020-12-12T02:04:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-12-01
In this paper, we present an alternative method for assessing the sensitivity of lead zirconate titanate (PZT) piezoceramics for damage detection in structural health monitoring (SHM) systems based on the electromechanical impedance (EMI) principle. An assessment of the sensitivity is obtained experimentally using the pencil lead break (PLB) method, which is frequently used in acoustic emission (AE) systems. Tests were carried out on an aluminum beam, and the results show a clear relationship between the damage indices obtained from the electrical impedance signatures of the PZT patch bonded to the monitored structure and the power spectral density (PSD) obtained using the PLB method.
Faculdade de Engenharia de Bauru UNESP Univ Estadual Paulista Departamento de Engenharia Elétrica
Faculdade de Engenharia de Bauru UNESP Univ Estadual Paulista Departamento de Engenharia Elétrica
