Damage Detection in Flexible Plate Using Lamb Waves

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dc.contributor.authorGonsalez, Camila Gianini [UNESP]
dc.contributor.authorFranco, Vitor Ramos [UNESP]
dc.contributor.authorBueno, Douglas Domingues [UNESP]
dc.contributor.authorMarqui, Clayton Rodrigo [UNESP]
dc.contributor.authorCavalini Junior, Aldemir A. [UNESP]
dc.contributor.authorLopes Junior, Vicente [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:26Z
dc.date.available2014-05-20T13:29:26Z
dc.date.issued2008-01-01
dc.description.abstractThis paper presents an experimental technique for structural health monitoring (SHM) based on Lamb waves approach in an aluminum plate using piezoelectric material as actuators and sensors. Lamb waves are a form of elastic perturbation that remains guided between two parallel free surfaces, such as the upper and lower surfaces of a plate, beam or shelf. Lamb waves are formed when the actuator excites the surface of the structure with a pulse after receiving a signal. Two PZTs were placed in the plate surface and one of them was used to send a predefined wave through the structure. Thus, the other PZT (adjacent) becomes the sensor. Using this methodology, this paper presents one case of damage detection considering the aluminum plate in the free-free-free-free boundary condition. The damage was simulated by adding additional mass on the plate. It is proposed two damage detection indexes obtained from the experimental signal, involving the Fast Fourier Transform (FFT) and the power spectral density (PSD) that were computed using the output signal. The results show the viability of the presented methodology to damage detection in smart structuresen
dc.description.affiliationUNESP, FEIS, GMSINT, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespUNESP, FEIS, GMSINT, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent570-575
dc.identifier.citationActuator 08, Conference Proceedings. Bremen: Messe Bremen-hvg Hanseatische Veranstaltungs-gmbh, p. 570-575, 2008.
dc.identifier.lattes8338952092032444
dc.identifier.urihttp://hdl.handle.net/11449/9928
dc.identifier.wosWOS:000270938400127
dc.language.isoeng
dc.publisherMesse Bremen-hvg Hanseatische Veranstaltungs-gmbh
dc.relation.ispartofActuator 08, Conference Proceedings
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleDamage Detection in Flexible Plate Using Lamb Wavesen
dc.typeArtigo
dcterms.rightsHolderMesse Bremen-hvg Hanseatische Veranstaltungs-gmbh
unesp.author.lattes8338952092032444
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Engenharia Mecânica - FEIS