Influence of temperature change on column buckling of multiwalled carbon nanotubes

Zhang, Y.Q.; Liu, X.; Zhao, Jianyou

doi:10.1016/j.physleta.2007.10.033

Cited by 79 publications

(25 citation statements)

References 48 publications

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“…It can be found that the critical stresses increase with the increase in temperature change at the same fluid velocity. This means that the nanobeam will be stiffer when it works under the low or room field [31,44]. It can be found in Eqs.…”

Section: Temperature Effects On the Critical Initial Stressesmentioning

confidence: 99%

Terahertz wave propagation in a fluid-conveying single-walled carbon nanotube with initial stress subjected to temperature and magnetic fields

et al. 2015

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This paper studies terahertz wave propagation in a fluid-conveying single-walled carbon nanotube (SWCNT) under temperature and magnetic fields. The SWCNT is modelled as a Timoshenko beam based on the theory of nonlocal elasticity, where the nanoscale effects are only included in bending moment and shear force through a nonlocal parameter. The governing equations of motion are derived based on nonlocal Timoshenko beam theory. A wave analysis is carried out to get the equations of the dispersion characteristics of wave propagation. Numerical results confirm the validity of the present model by comparing the results in reduced cases with those reported in the published literature. The dispersion curves of wave propagation show that the initial stress plays a very important role on the shear and flexural frequencies of a fluid-conveying SWCNT. Meanwhile, the influences of the nonlocal parameter, fluid velocity, flow density, temperature change and magnetic field on the critical stress of a fluid-conveying SWCNT are discussed. This study may be useful for the design of smart nanodevices for the delivery of drugs to cells, carrying gases, and other applications of nanobeam devices.

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Section: Temperature Effects On the Critical Initial Stressesmentioning

confidence: 99%

Terahertz wave propagation in a fluid-conveying single-walled carbon nanotube with initial stress subjected to temperature and magnetic fields

et al. 2015

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“…Based on the successful application of the cylindrical shell model for SWCNT [69], the multipleshell model [70][71][72][73][74] and the beam model [75,76] were proposed and developed for simulating buckling properties of MWCNTs under axial compression. The adjacent nanotubes for MWCNTs were coupled to each other by the vdW interaction.…”

Section: Theoretical Mode and Approach Of Buckling Propertiesmentioning

confidence: 99%

Carbon Nanotube-Based Nanomechanical Sensor: Theoretical Analysis of Mechanical and Vibrational Properties

Natsuki

2017

Electronics

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This paper reviews the recent research of carbon nanotubes (CNTs) used as nanomechanical sensing elements based mainly on theoretical models. CNTs have demonstrated considerable potential as nanomechanical mass sensor and atomic force microscope (AFM) tips. The mechanical and vibrational characteristics of CNTs are introduced to the readers. The effects of main parameters of CNTs, such as dimensions, layer number, and boundary conditions on the performance characteristics are investigated and discussed. It is hoped that this review provides knowledge on the application of CNTs as nanomechanical sensors and computational methods for predicting their properties. Their theoretical studies based on the mechanical properties such as buckling strength and vibration frequency would give a useful reference for designing CNTs as nanomechanical mass sensor and AFM probes.

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“…The softer phenomenon of CNT and graphene sheet is in line with the observations reported in the literature. [32][33][34] The transit momentum, resultant force, contact area, and impact pressures are shown in Fig. 12 for the third scenario.…”

Section: B Momentum and Impact Pressurementioning

confidence: 99%

Collision of a suddenly released bent carbon nanotube with a circular graphene sheet

Duan

Wang

Tang

2010

Journal of Applied Physics

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Molecular dynamics ͑MD͒ simulations were used to investigate the mechanical strain energy release of a bent single wall carbon nanotube ͑CNT͒ and its mechanical collision with a circular graphene sheet that is fixed at its edges. The MD simulations show that the CNT is able to store a vast amount of mechanical strain energy because of the formation of kinks on its wall at the regions of maximum curvature. The sudden release of the strain energy upon releasing the bent CNT can cause its tip to approach a speed of 7000 m/s. Even with such a high speed collision with a monolayer graphene sheet, the CNT and the monolayer graphene sheet remain completely intact and do not suffer any damage. The instantaneous average impact pressure between the CNT and the graphene sheet is calculated to be in the range of 1-10 GPa for different temperatures and aspect ratios of the CNT. These results indicate the promising application of a CNT and a graphene sheet as a nanoknife and a nanocutting board, respectively, for nanocleavage processes such as sequence-specific DNA cleaving processes.

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Influence of temperature change on column buckling of multiwalled carbon nanotubes

Cited by 79 publications

References 48 publications

Terahertz wave propagation in a fluid-conveying single-walled carbon nanotube with initial stress subjected to temperature and magnetic fields

Terahertz wave propagation in a fluid-conveying single-walled carbon nanotube with initial stress subjected to temperature and magnetic fields

Carbon Nanotube-Based Nanomechanical Sensor: Theoretical Analysis of Mechanical and Vibrational Properties

Collision of a suddenly released bent carbon nanotube with a circular graphene sheet

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