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Vibrations of functionally graded material axisymmetric shells.

2020-09-15Journal article Restricted access
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dc.contributor.authorMoita, J. S.
dc.contributor.authorAraújo, A. L.
dc.contributor.authorCorreia, V. F.
dc.contributor.authorSoares, C. M. M.
dc.date.accessioned2025-04-24T14:26:00Z
dc.date.available2025-04-24T14:26:00Z
dc.date.issued2020-09-15
dc.description.abstractThe free-vibration analysis of functionally graded materials (FGM) axisymmetric plate-shell type structures are presented in this work. A numerical solution is obtained by expanding the variables in Fourier series in the circumferential direction and using conical frustum finite elements in the meridional direction. The finite element model, having two nodal circles and ten degrees of freedom per node, is based in the Kirchhoff-Love theory that include the transverse shear deformations by introducing a penalty function, and using one Gauss point integration scheme which gave excellent results for both thin and thick axisymmetric plate/shells structures. The reduced number of finite elements, which are required to model even complex structures, combined with the use of a small number of discrete layers to model the continuous variation of the mechanical properties through the thickness of the structure, result in an extremely low computational time required for FGM applications. An in-house program has been developed, and applications in a variety of axysimetric shells are solved, including circular plates. The solutions obtained are discussed and compared with solutions obtained by alternative models.eng
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMoita, J. S., Araújo, A. L., Correia, V. F., & Soares, C. M. M. (2020). Vibrations of functionally graded material axisymmetric shells. Composite Structures, 248, 112489
dc.identifier.doi10.1016/j.compstruct.2020.112489
dc.identifier.urihttp://hdl.handle.net/10400.26/57748
dc.language.isoengpt_PT
dc.peerreviewedyes
dc.publisherElsevierpt_PT
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0263822320306632?via%3Dihub
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectFunctionally Graded Material (FGM) axisymmetric shells
dc.subjectFinite element model
dc.subjectFree-vibration analysis
dc.subjectTemperature effect
dc.titleVibrations of functionally graded material axisymmetric shells.pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage112489
oaire.citation.titleComposite Structurespt_PT
oaire.citation.volume248pt_PT
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
rcaap.typearticlept_PT

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