Damage indices evaluation for one-dimensional guided wave-based structural health monitoring

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorBarreto, Lucas S.-
Autor(es): dc.creatorMachado, Marcela Rodrigues-
Autor(es): dc.creatorSantos, Juliana Cardoso-
Autor(es): dc.creatorMoura, Braion Barbosa de-
Autor(es): dc.creatorKhalij, Leila-
Data de aceite: dc.date.accessioned2024-10-23T16:14:36Z-
Data de disponibilização: dc.date.available2024-10-23T16:14:36Z-
Data de envio: dc.date.issued2021-03-29-
Data de envio: dc.date.issued2021-03-29-
Data de envio: dc.date.issued2020-
Fonte completa do material: dc.identifierhttps://repositorio.unb.br/handle/10482/40393-
Fonte completa do material: dc.identifierhttps://doi.org/10.1590/1679-78256292-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0001-9340-6330-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0002-7488-7201-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0003-0459-8655-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0003-0314-730X-
Fonte completa do material: dc.identifierhttp://orcid.org/0000-0002-7058-0544-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/903388-
Descrição: dc.descriptionDamage detection in structures and systems is essential for monitoring parameters that can affect their integrity. This paper evaluates the efficiency of four damage indices (DIs) commonly used with temporal wave signals. The root mean square deviation, mean absolute percentage deviation, covariance, and correlation coefficient deviation DIs are presented, and a normalization is then proposed. An Euler-Bernoulli beam is used as a guided wave modelled with the spectral element method and excited by a toneburst signal. It includes the theoretical background of the throw-off beam, undamaged and cracked beam spectral elements. The DIs for a single crack position and a map varying crack depth and positions are calculated with deterministic and random temporal signal responses derived from noise addition. Results showed that DIs could identify and quantify the damage conditioned to the pulse location point and the influence of noise in the estimation, which leads in an analysis comparable to practical applications.-
Formato: dc.formatapplication/pdf-
Publicador: dc.publisherAssociação Brasileira de Ciências Mecânicas-
Direitos: dc.rightsAcesso Aberto-
Direitos: dc.rights(CC BY) - Latin American Journal of Solids and Structures. ISSN 1679-7825. Copyright © 2021. This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.-
Palavras-chave: dc.subjectQuantificação de danos-
Palavras-chave: dc.subjectMétodo do elemento espectral-
Palavras-chave: dc.subjectPropagação de ondas-
Palavras-chave: dc.subjectÍndice de danos-
Título: dc.titleDamage indices evaluation for one-dimensional guided wave-based structural health monitoring-
Tipo de arquivo: dc.typelivro digital-
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