MD investigation of the collective carbon atom behavior of a (17, 0) zigzag single wall carbon nanotube under axial tensile strain

Ju, Shin‐Pon; Weng, Meng-Hsiung; Wu, Wen-Shian

doi:10.1007/s11051-010-9888-3

Cited by 2 publications

(1 citation statement)

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“…For the (6,0) and (8,0) SWCNTs, it is apparent that the stress-strain curves of the SWCNT can be divided into three stages according to different slopes. Such behavior is in good agreement with previous reports by Ju et al, 16,17 who found that the three stages are related to the tangential, axial, and tangential deformations of the tube. However, the gradient of the curve shows only two stages of variation before the yielding strain for the case of heterojunctions.…”

Section: Resultssupporting

confidence: 93%

Investigation into the mechanical properties of single-walled carbon nanotube heterojunctions

Lee

2013

Phys. Chem. Chem. Phys.

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The mechanical properties of finite-length (6,0)/(8,0) single-walled carbon nanotube (SWCNT) heterojunctions with respect to different kinds of connection segments, either coaxial or bias, are investigated using molecular dynamics simulation calculations. It is found that the resulting significant deformation of structure and significant drop of stress under yielding strain is due to the strain localization. Moreover, the deformation is occurred below the heptagon ring in the thinner segment of the heterojunctions under tension at different temperatures, whereas under compression it occurs on the heptagon ring. The computed atomic bond number distribution and radius distribution function are applied to determine the deformed atomic structure. Finally, with increasing temperature, the yielding stresses decrease for both coaxial and bias heterojunctions under tension and compression, while the dependence of temperature on the Young's modulus of the heterojunctions is only observed in the case of tension.

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Section: Resultssupporting

confidence: 93%