Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-dimensional free vibration analysis of functionally graded nanocomposite cylindrical panels reinforced by carbon nanotube
Highlights ► (FG-X) reinforcements can increase the normalized natural frequency. ► The natural frequency decreases with increasing L/R ratio for short cylindrical panels. ► The natural frequency remains unaltered for long cylindrical panels. ► The biggest frequency is happened when CNTs are oriented with and . ► Increasing the CNT volume fraction, increases the frequency of FG-CNTRC panels.
Abstract This work deals with a study of the vibrational properties of functionally graded nanocomposite cylindrical panels reinforced by single-walled carbon nanotubes (SWCNTs) based on the three-dimensional theory of elasticity. The carbon nanotube reinforced (CNTRC) cylindrical panel have smooth variation of carbon nanotube (CNT) fraction in the radial direction and the material properties are estimated by the extended rule of mixture. Symmetric and asymmetric volume fraction profiles are provided in this paper for comparison. Suitable displacement functions that identically satisfy the boundary conditions at the simply supported edges are used to reduce the equilibrium equations to a set of coupled ordinary differential equation with variable coefficients, which can be solved by a generalized differential quadrature (GDQ) method. The results show that the kind of distribution and volume fraction of CNT have a significant effect on normalized natural frequency.
Three-dimensional free vibration analysis of functionally graded nanocomposite cylindrical panels reinforced by carbon nanotube
Highlights ► (FG-X) reinforcements can increase the normalized natural frequency. ► The natural frequency decreases with increasing L/R ratio for short cylindrical panels. ► The natural frequency remains unaltered for long cylindrical panels. ► The biggest frequency is happened when CNTs are oriented with and . ► Increasing the CNT volume fraction, increases the frequency of FG-CNTRC panels.
Abstract This work deals with a study of the vibrational properties of functionally graded nanocomposite cylindrical panels reinforced by single-walled carbon nanotubes (SWCNTs) based on the three-dimensional theory of elasticity. The carbon nanotube reinforced (CNTRC) cylindrical panel have smooth variation of carbon nanotube (CNT) fraction in the radial direction and the material properties are estimated by the extended rule of mixture. Symmetric and asymmetric volume fraction profiles are provided in this paper for comparison. Suitable displacement functions that identically satisfy the boundary conditions at the simply supported edges are used to reduce the equilibrium equations to a set of coupled ordinary differential equation with variable coefficients, which can be solved by a generalized differential quadrature (GDQ) method. The results show that the kind of distribution and volume fraction of CNT have a significant effect on normalized natural frequency.
Three-dimensional free vibration analysis of functionally graded nanocomposite cylindrical panels reinforced by carbon nanotube
Yas, M.H. (Autor:in) / Pourasghar, A. (Autor:in) / Kamarian, S. (Autor:in) / Heshmati, M. (Autor:in)
02.01.2013
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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