On the buckling behavior of single-walled silicon carbide nanotubes

Ansari, R.; Rouhi, S.; Aryayi, M.; Mirnezhad, M.

doi:10.1016/j.scient.2012.10.004

Cited by 34 publications

(13 citation statements)

References 35 publications

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“…In the last decade, many scientists have published a number of research pieces on the subject of the stability and analysis of micro-nanowires and micronanotubes. Ansari et al [96] investigated the buckling behavior of single-walled silicon carbide nanotubes using ANSYS commercial FE code in 2012. After that, in 2013, Arani and Hashemian [97] investigated the surface stress e ects on the dynamic stability of double-walled boron nitride nanotubes that convey viscous uid based on nonlocal shell theory.…”

Section: Continuum Models Of Nanostructuresmentioning

confidence: 99%

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

2019

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In the present paper, stability analysis of boron nitride and silicon carbide nanotubes/nanowires is carried out using di erent size-e ective theories, nite element method, and computer software. Size-e ective theories used in this paper include Modi ed Couple Stress Theory (MCST), Modi ed Strain Gradient Theory (MSGT), Nonlocal Elasticity Theory (NET), Surface Elasticity Theory (SET), and Nonlocal Surface Elasticity Theory (NSET). As for the computer software, ANSYS and COMSOL multiphysics are used. Comparative results of theories and software and literature are given in the result section. Comparative results are in good harmony. In conclusion, it is clearly seen that the nonlocal elasticity theory yields the lowest results for every modes and structures, while the modi ed strain gradient theory yields the highest results.

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Section: Continuum Models Of Nanostructuresmentioning

confidence: 99%

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

2019

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“…More recently, [3] have synthesized SiNTs which are considered as a kind of self-assembled SiNTs which can form crystal structures. Ansari et al have calculated the buckling behavior of single-walled silicon carbide nanotubes by using a 3D finite element method [5].…”

Section: Introductionmentioning

confidence: 99%

Buckling Analysis of Silicon Carbide Nanotubes (SiCNTs)

Mercan¹,

Cívalek²

2016

International Journal of Engineering &Amp; Applied Sciences

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“…Substituting the values of force constants as kr=417.156nN/nm, kθ=0.842nN.nm and kτ=1.505nN,nm 10,11 into equation (9), the elastic properties are obtained as d=1.7971Ang, E=2.9372×10-8N/Ang2 and G=2.6256×10-8N/Ang2. 10,11 The masses 4.6514×10-23g and 1.9945×10-23g, respectively, are placed at the corners of hexag...…”

Section: Atomistic Finite Element Modelingmentioning

confidence: 99%

“…Using molecular mechanics coupling with quantum mechanics, recently, Ansari et al. 10 developed an atomistic finite element model to study the buckling behavior of single-walled SiCNTs (SWSiCNTs). They showed that critical buckling force decreases with increasing tube length.…”

Section: Introductionmentioning

confidence: 99%

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Vibrational analysis of single-layered silicon carbide nanosheets and single-walled silicon carbide nanotubes using nanoscale finite element method

Ansari

Rouhi

2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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A three-dimensional finite element model has been used here to study the vibrational behavior of silicon carbide nanosheets and nanotubes. The bonds of hexagonal lattices of SiC nanosheets have been modeled by structural beam elements, and at the corners, mass elements are placed instead of Si and C atoms. Moreover, molecular dynamics simulations are performed to verify the finite element model. Comparing the results of finite element model and molecular dynamics simulations, it is concluded that the utilized approach can predict the results of molecular dynamics simulations with a reasonable accuracy. It is observed that the atomic structure does not significantly affect the vibrational behavior of nanosheets. Besides, increasing the size of nanosheet results in decreasing the effect of geometry variation. As the aspect ratio of nanotubes increases, the effects of boundary conditions and length diminish so that the frequency envelopes tend to converge.

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On the buckling behavior of single-walled silicon carbide nanotubes

Cited by 34 publications

References 35 publications

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

Finite Element Model and Size Dependent Stability Analysis of Boron Nitride and Silicon Carbide Nanowires/Nanotubes

Buckling Analysis of Silicon Carbide Nanotubes (SiCNTs)

Vibrational analysis of single-layered silicon carbide nanosheets and single-walled silicon carbide nanotubes using nanoscale finite element method

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