On wave propagation of functionally graded CNT strengthened fluid-conveying pipe in thermal environment

In this paper, the wave propagation of functionally graded single-walled carbon nanotubes strengthened fluid-conveying pipe considering the thermal and fluid effects is investigated. Five reinforcement patterns are realized by changing CNT distribution along thickness. The rule of mixture is used to...

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Bibliographic Details
Published in:European physical journal plus 2022-10, Vol.137 (10), p.1158, Article 1158
Main Authors: Chen, Xu, Zhao, Jing-Lei, She, Gui-Lin, Jing, Yan, Luo, Jun, Pu, Hua-Yan
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Carbon
Complex Systems
Composite materials
Condensed Matter Physics
Conveying
Deformation
Differential equations
Equations of motion
Flow velocity
Functionally gradient materials
Investigations
Material properties
Mathematical analysis
Mathematical and Computational Physics
Molecular
Nanocomposites
Nanotechnology
Nondestructive testing
Optical and Plasma Physics
Partial differential equations
Physics
Physics and Astronomy
Pipes
Propagation
Propagation velocity
Regular Article
Single wall carbon nanotubes
Theoretical
Thermal environments
Vibration
Wave propagation
Wave velocity
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Summary:In this paper, the wave propagation of functionally graded single-walled carbon nanotubes strengthened fluid-conveying pipe considering the thermal and fluid effects is investigated. Five reinforcement patterns are realized by changing CNT distribution along thickness. The rule of mixture is used to estimate the nanocomposite materials properties. And the motion equations were derived by Hamilton’s variational principle and a higher-order beam theory. By solving a system of differential equations, the influences of the patterns of reinforcement, flow velocity, temperature, geometrical parameters and CNT volume fraction are discussed in detail. We find that increasing the volume fraction can significantly increase the propagation velocity of waves, and the flow velocity has very little effect on wave propagation in pipe.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-022-03234-0