Frequency analysis of nanotubes with consideration of surface effects

Farshi, Behrooz; Assadi, Abbas; Alinia-ziazi, Ali
March 2010
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093105
Academic Journal
Consideration of surface effects in microscaled and nanoscaled materials is important for accurate prediction of their dynamic behavior. In this study, the Timoshenko beam model is modified to include the surface effects and used to analyze the vibration of nanotubes as well as calculate their natural frequencies. The thin surface layers have been taken into account for rotary inertia computation. Through an example it is shown that dynamic behavior of nanoscaled tubes with consideration of surface effects considerably deviates from the results obtained by classical theories. Plots illustrating such deviations are given to support the conclusions.


Related Articles

  • Carbon nanotube-reinforced composites: frequency analysis theories based on the matrix stiffness. Amin, Sara; Dalir, Hamid; Farshidianfar, Anooshirvan // Computational Mechanics;Apr2009, Vol. 43 Issue 4, p515 

    Strong and versatile carbon nanotubes are finding new applications in improving conventional polymer-based fibers and films. This paper studies the influence of matrix stiffness and the intertube radial displacements on free vibration of an individual double-walled carbon nanotube (DWNT). For...

  • 80 GHz field-effect transistors produced using high purity semiconducting single-walled carbon nanotubes. Nougaret, L.; Happy, H.; Dambrine, G.; Derycke, V.; Bourgoin, J. -P.; Green, A. A.; Hersam, M. C. // Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p243505 

    This paper presents the high frequency performance of single-walled carbon nanotube (SWNT) field-effect transistors, with channel consisting of dense networks of high purity semiconducting SWNTs. Using SWNT samples containing 99% pure semiconducting SWNTs, we achieved operating frequencies above...

  • Free transverse vibration of the fluid-conveying single-walled carbon nanotube using nonlocal elastic theory. Lee, Haw-Long; Chang, Win-Jin // Journal of Applied Physics;Jan2008, Vol. 103 Issue 2, p024302 

    The effects of flow velocity on the vibration frequency and mode shape of the fluid-conveying single-walled carbon nanotube are analyzed using nonlocal elastic theory. Results show that the frequency and mode shape are significantly influenced by the nonlocal parameter e0a/L. Increasing the...

  • Mentor's Design-to-Silicon Roadmap Addresses DFM Requirements.  // Electronic News;10/25/2004, Vol. 50 Issue 43, pN.PAG 

    Reports on the Calibre Transition, Measure and Analyze design-to-silicon platform and its roadmap for Calibre digital frequency meter from Wilsonville, Oregon-based Mentor Graphics Corp. Function of the system; Other digital frequency meter capabilities that the company is developing;...

  • The onset of instability in nanostructures: The role of nonlinear resonance. Sumpter, Bobby G.; Noid, Donald W. // Journal of Chemical Physics;4/22/1995, Vol. 102 Issue 16, p6619 

    Classical trajectory methods are used to examine the vibrational dynamics of carbon nanotubes. The results clearly demonstrate an integral relationship between the diameter and length of a nanotube and its positional stability: tubes having diameters smaller than 0.7 nm undergo large-amplitude...

  • Atomic structure, electronic properties, and thermal stability of diamond-like nanowires and nanotubes. Ivanovskaya, V.; Ivanovskii, A. // Inorganic Materials;Apr2007, Vol. 43 Issue 4, p349 

    Density functional tight-binding calculations are used to investigate the structure, electronic properties, energy stability, and thermal behavior (0–1500 K) of extended monolithic (nanowires) and hollow (nanotubes) diamond-like carbon nanostructures. The results indicate that...

  • The Future of Nanoelectronics. Song Jin // Technology Review;Sep2006, Vol. 109 Issue 4, p26 

    In this article, the author predicts the role of nanoelectronics based on chemically synthesized nanostructures, like carbon nanotubes and nanowires. The author asserts the strength of the nanomaterials is in their chemical diversity and flexibility. These nanostructures might be suitable for...

  • Low frequency divergence of the dielectric constant and signature of the Meyer–Neldel rule in the ac conductivity of PbS and PbS:Mn nanorods in polymer. Mandal, A. R.; Kabir, L.; Mandal, S. K. // Journal of Applied Physics;Mar2008, Vol. 103 Issue 6, p064311 

    We report here the temperature (130–296 K) and frequency (100 Hz–1 MHz) dependent dielectric study for PbS and PbS:Mn nanorods of diameter ∼30 nm grown in polymer matrix. The frequency dependent capacitance data show the divergence of capacitance in the low frequency regime...

  • Nanobridge gate-all-around phototransistors for electro-optical OR gate circuit and frequency doubler applications. Jin Yong Oh; Saif Islam, M. // Applied Physics Letters;1/13/2014, Vol. 104 Issue 2, p022110-1 

    We fabricated photosensitive silicon-nanobridge 3-D field-effect-transistors and demonstrated their analog and digital applications. The channels of the transistors were implemented by nanowires, grown and bridged between pairs of silicon electrodes using the vapor-liquid-solid technique. Whilst...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics