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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampSantos, José Maria Campos dos-
dc.typeArtigopt_BR
dc.titleFlexural wave band gaps in multi-resonator elastic metamaterial Timoshenko beamspt_BR
dc.contributor.authorMiranda Jr., E. J. P.-
dc.contributor.authorDos Santos, J. M. C.-
dc.subjectMetamateriaispt_BR
dc.subject.otherlanguageMetamaterialspt_BR
dc.description.abstractPlane wave expansion (PWE) is one of the most commonly employed methods of calculating dispersion diagrams of phononic crystals. Nevertheless, the method has been used less frequently to deal with elastic metamaterials (EMs), such as beams and plates containing local resonators. Until now, PWE and extended plane wave expansion (EPWE) methods have not been used to calculate the dispersion diagrams of EM beams with multiple periodic arrays of attached multiple degrees of freedom (M-DOF) resonators. We propose PWE and EPWE formulations to analyse flexural wave band gaps in an EM Timoshenko beam with multiple periodic arrays of attached M-DOF resonators. These formulations can predict more accurate results at higher frequencies than previous formulations developed based on Euler-Bernoulli beam theory. A coupling between locally resonant and Bragg-type band gaps is observed considering two arrays of single degree of freedom (S-DOF) resonators. However, this coupling does not occur for a single array of 2-DOF resonators even if the mass ratio is not fixed. Multiple arrays of 2-DOF resonators achieve better attenuation performance than multiple arrays of S-DOF resonators at the first resonance frequencies. However, near the first Bragg frequency, the attenuation is higher for multiple arrays of S-DOF resonators. Mass ratio effect is also investigated and it is significant for design purposes. Multiple arrays of M-DOF resonators enlarge EM potential applications for vibration managementpt_BR
dc.relation.ispartofWave motion: an international journal reporting research on wave phenomenapt_BR
dc.relation.ispartofabbreviationWave motionpt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2019-
dc.date.monthofcirculationNov.pt_BR
dc.language.isoengpt_BR
dc.description.volume91pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0165-2125pt_BR
dc.identifier.eissn1878-433Xpt_BR
dc.identifier.doi10.1016/j.wavemoti.2019.102391pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0165212519302756pt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA E AO DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO DO MARANHÃO - FAPEMApt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.date.available2020-05-05T15:59:11Z-
dc.date.accessioned2020-05-05T15:59:11Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-05-05T15:59:11Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:17:15Z : No. of bitstreams: 1 000491616700010.pdf: 2281664 bytes, checksum: 00128898e8261c9e232ed83b0d512494 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-05T15:59:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/340143-
dc.contributor.departmentDepartamento de Mecânica Computacionalpt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordElastic metamaterialpt_BR
dc.subject.keywordTimoshenko beam theorypt_BR
dc.subject.keywordPlane wave expansionpt_BR
dc.subject.keywordComplex dispersion diagrampt_BR
dc.subject.keywordMultiple resonatorspt_BR
dc.identifier.source000491616700010pt_BR
dc.creator.orcid0000-0002-3277-3492pt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid102391pt_BR
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