Inertio-elastic instability of functionally graded nanotube-reinforced composite disks

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dc.authorid0000-0002-9204-5868
dc.contributor.authorYildirim, Sefa
dc.contributor.authorTutuncu, Naki
dc.date.accessioned2026-01-24T12:29:05Z
dc.date.available2026-01-24T12:29:05Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractRotational elastic instability of annular members is an important phenomenon which may lead to the destruction of structures. The instability analysis of rotating disks made of carbon nanotube reinforced composite (FG-CNTRC) has been presented. This study is the first to investigate the rotational instability of FG-CNTRC disks, providing new insights into the design of high-stability rotating structures. The rotating disk mounted to rigid shaft has variable-thickness and the function of CNT distribution along the radial coordinate may be uniform or functionally graded. The refined rule of mixture approach is used to obtain the material properties of composite where efficiency parameters are considered. The actual centrifugal force with radial displacement is taken into account and the burst velocities at which instability observed are obtained. The theory used in the analysis is plane elasticity and the governing differential equations of the problem have variable-coefficients where the analytical solution may not be available. Complementary Functions Method, which is a powerful numerical solution scheme, is implemented into the analysis and high accuracy with few collocation points are achieved using non-dimensional parameters. The influences of CNT distribution pattern, volume fraction of CNTs and variations of thickness profiles on the burst velocities of disk are examined. It is revealed that CNT addition to the isotropic polymer has a stabilizing effect on the rotating disk by increasing the burst velocity and the most effective parameter is the CNT distribution pattern. Considering all distribution patterns, the FG-V pattern yields the most stable disk design. Validation of the results is done using analytical solution which is only available for uniformly distributed CNTRC with the hyperbolic thickness profile.
dc.identifier.doi10.1177/03093247241302911
dc.identifier.endpage179
dc.identifier.issn0309-3247
dc.identifier.issn2041-3130
dc.identifier.issue3
dc.identifier.scopus2-s2.0-105001983509
dc.identifier.scopusqualityQ1
dc.identifier.startpage171
dc.identifier.urihttps://doi.org/10.1177/03093247241302911
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5126
dc.identifier.volume60
dc.identifier.wosWOS:001368448100001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofJournal of Strain Analysis For Engineering Design
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260121
dc.subjectInstability
dc.subjectfunctionally graded carbon nanotube
dc.subjectcentrifugal force
dc.subjectrefined rule of mixtures
dc.subjectplane elasticity
dc.titleInertio-elastic instability of functionally graded nanotube-reinforced composite disks
dc.typeArticle

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