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A study on the effect of carbon nanotubes’ distribution and agglomeration in the free vibration of nanocomposite plates

2020-11-30Journal article Open access
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dc.contributor.authorCraveiro, D.S.
dc.contributor.authorLoja, M.A.R.
dc.date.accessioned2020-12-15T11:50:03Z
dc.date.available2020-12-15T11:50:03Z
dc.date.issued2020-11-30
dc.description.abstractThe present work aimed to characterize the free vibrations’ behaviour of nanocomposite plates obtained by incorporating graded distributions of carbon nanotubes (CNTs) in a polymeric matrix, considering the carbon nanotubes’ agglomeration effect. This effect is known to degrade material properties, therefore being important to predict the consequences it may bring to structures’ mechanical performance. To this purpose, the elastic properties’ estimation is performed according to the two-parameter agglomeration model based on the Eshelby–Mori–Tanaka approach for randomly dispersed nano-inclusions. This approach is implemented in association with the finite element method to determine the natural frequencies and corresponding mode shapes. Three main agglomeration cases were considered, namely, agglomeration absence, complete agglomeration, and partial agglomeration. The results show that the agglomeration effect has a negative impact on the natural frequencies of the plates, regardless the CNTs’ distribution considered. For the corresponding vibrations’ mode shapes, the agglomeration effect was shown in most cases not to have a significant impact, except for two of the cases studied: for a square plate and a rectangular plate with symmetrical and unsymmetrical CNTs’ distribution, respectively. Globally, the results confirm that not accounting for the nanotubes’ agglomeration effect may lead to less accurate elastic properties and less structures’ performance predictions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCRAVEIRO, D. S.; LOJA, M. A. R. – A study on the effect of carbon nanotubes’ distribution and agglomeration in the free vibration of nanocomposite plates. C — Journal of Carbon Research. ISSN 2311-5629. Vol. 6, N.º 4 (2020), pp. 1-32pt_PT
dc.identifier.doi10.3390/c6040079pt_PT
dc.identifier.issn2311-5629
dc.identifier.urihttp://hdl.handle.net/10400.21/12464
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationUIDB/50022/2020 - FCT/MEC through Project IDMEC, LAETApt_PT
dc.subjectNanocompositespt_PT
dc.subjectCNTs’ agglomerationpt_PT
dc.subjectFunctionally graded materialpt_PT
dc.subjectEshelby–Mori–Tanaka approachpt_PT
dc.subjectFree vibrations’ behaviourpt_PT
dc.subjectPlates’ natural frequenciespt_PT
dc.subjectPlates’ vibration mode shapespt_PT
dc.titleA study on the effect of carbon nanotubes’ distribution and agglomeration in the free vibration of nanocomposite platespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage32pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleC — Journal of Carbon Researchpt_PT
oaire.citation.volume6pt_PT
person.familyNameSantos Craveiro
person.familyNameLoja
person.givenNameDébora Alexandra
person.givenNameAmélia
person.identifier.ciencia-idD616-0F2A-D4F7
person.identifier.ciencia-idA016-59D1-2D00
person.identifier.orcid0000-0002-0506-691X
person.identifier.orcid0000-0002-4452-5840
person.identifier.ridI-7513-2015
person.identifier.scopus-author-id15741348500
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione88638bf-1554-4d2b-9ab9-f02045e94699
relation.isAuthorOfPublication9f43a546-1632-49c5-bd44-94aac2d7b648
relation.isAuthorOfPublication.latestForDiscovery9f43a546-1632-49c5-bd44-94aac2d7b648

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