Mechanical properties of carbon, silicon carbide, and boron nitride nanotubes: effect of ionization

Петрушенко, И.К.; Petrushenko, Konstantin B.

doi:10.1007/s00706-015-1537-1

Cited by 13 publications

(5 citation statements)

References 45 publications

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“…DFT method with the PBE functional was employed [23,24]. The PBE has been demonstrated to be a reliable and commonly used functional for study of different nanostructures [25][26][27]. To calculate equilibrium geometries of studied structures we used Ahlirchs' SVP (split-valence polarization) basis set [28].…”

Section: -2mentioning

confidence: 99%

DFT Study on Structural and Mechanical Properties of Single-walled Carbon and Boron Nitride Nanotubes Functionalized with Carbenes

Петрушенко¹

2016

J. Nano- Electron. Phys.

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This paper presents quantum chemistry study on structural and mechanical properties of a series of single-walled carbon nanotubes (SWCNTs) and boron nitride nanotubes (BNNTs) functionalized with carbenes. At the PBE/SVP level, the obtained data on pristine nanotubes are in good accordance with the results of previous experimental and theoretical studies. The calculations show that carbenes functionalization, in general, distorts both SWNCTs and BNNTs frameworks, but there exists the difference between 'axial' and 'circumferential' functionalization. It turns out that in both cases elastic properties diminish with increasing concentration of adsorbents, however, the functionalized SWCNTs and BNNTs remain strong enough to be suitable for reinforcement of composites.

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Section: -2mentioning

confidence: 99%

DFT Study on Structural and Mechanical Properties of Single-walled Carbon and Boron Nitride Nanotubes Functionalized with Carbenes

Петрушенко¹

2016

J. Nano- Electron. Phys.

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“…To illustrate, in the case of mechanical properties, CNT has Young's modulus around 1 TPa, while BNNT has 1.8 TPa and 0.62 TPa for SiCNT. The Poisson's ratio used for analysis in the current research is 0.37 for SiCNT and 0.25 for BNNT [49][50][51]. Moreover, CNTs can resist thermal environment up to 600 C, while SiCNT can resist up to 1000 C in the air without any damage [52,53].…”

Section: Introductionmentioning

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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“…For this purpose, it is assumed that the elements of the nanoframe given in figure 1 are composed of silicon carbide nanotubes. The Young's modulus and Poisson's ratio of silicon carbide nanotube are as follows: E=0.45 TPa, ν=0.27 [58,59]. The shear modulus of silicon carbide nanotube is calculated by the following relation:…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

A Finite Element Solution for Bending Analysis of a Nanoframe using Modified Couple Stress Theory

Uzun

Yaylı

2022

International Journal of Engineering and Applied Sciences

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In this work, a finite element formulation for a size dependent frame system is presented. Size dependency is discussed via the modified couple stress theory. The nodal displacement and rotation analyses of a frame system with total of three elements, including two columns and one beam element connecting these two columns, are considered. The classical stiffness and size dependent stiffness matrices of frame system are derived. Then, solution procedure for this problem is explained. Lastly, a numerical application is realized and effect of material length scale parameter on nodal displacements and rotations is discussed. To present the numerical application, it is assumed that the elements of the nanoframe are composed of silicon carbide nanotubes.

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Mechanical properties of carbon, silicon carbide, and boron nitride nanotubes: effect of ionization

Cited by 13 publications

References 45 publications

DFT Study on Structural and Mechanical Properties of Single-walled Carbon and Boron Nitride Nanotubes Functionalized with Carbenes

DFT Study on Structural and Mechanical Properties of Single-walled Carbon and Boron Nitride Nanotubes Functionalized with Carbenes

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

A Finite Element Solution for Bending Analysis of a Nanoframe using Modified Couple Stress Theory

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