Finite element evaluation of the effects of curvature in lamb waves for composites structural health monitoring

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dc.creatorGuilherme André Santana
dc.creatorMohammad Malekan
dc.creatorAlexandre Martins Araújo
dc.creatorLázaro Valentim Donadon
dc.creatorCarlos Alberto Cimini Junior
dc.date.accessioned2024-10-02T21:10:28Z
dc.date.accessioned2025-09-09T00:16:11Z
dc.date.available2024-10-02T21:10:28Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doi10.1590/1679-78255193
dc.identifier.issn16797825
dc.identifier.urihttps://hdl.handle.net/1843/77126
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofLatin American Journal of Solids and Structures
dc.rightsAcesso Aberto
dc.subjectCurvatura
dc.subjectVidro, Fibra de.
dc.subjectCompósitos
dc.subjectOndas - Mecânica
dc.titleFinite element evaluation of the effects of curvature in lamb waves for composites structural health monitoring
dc.typeArtigo de periódico
local.citation.epage21
local.citation.issue10
local.citation.spage1
local.citation.volume15
local.description.resumoThis work presents the effect of the high curvature to thickness ratio on the characteristics of Lamb Waves propagating over the skins of composite structures. It is accessed how the curvature on composite skins affects the group velocity of the symmetrical (S0) and asymmetrical (A0) wave modes. It is also accessed the gradient of curvature effect, when the wave propagates from a flat to a curved part on the skin. The results are intended to be used for the improvement of structural health monitoring of wings and wind turbine blades. This is accomplished through dynamic explicit linear finite element method simulations of plates with flat and curved parts made of Eglass-epoxy bidirectional laminate. As the skin structures are often designed to withstand torsional loads, the fibers are aligned with 45 degrees from the leading edge (curved region) throughout the analysis. Several skins with different curvature to thickness ratios are generated and simulated. Results and trends are presented and can be used to improve the algorithms for damage detection on those structures. It is shown that the group velocity of the incoming waves change considerably with the presence of curvature, for both main modes of vibration.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ESTRUTURAS
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA MECÂNICA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/lajss/a/J4tknd6FKzLPtpDQxH4gMpL/?lang=en

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