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In this paper, based on the continuum mechanics method, we adopt the three-dimensional finite element (FE) models to study the effects of different atom vacancy defects on the elastic constants of armchair and zigzag single-walled carbon nanotubes (SWCNTs). Also, the variations of the elastic constants with the nanotube diameter and length are investigated. The diameters of SWCNTs vary from 0.5 to...
Based on the three-dimensional finite element (FE) model, we perform the eigenvalue buckling analysis for armchair and zigzag single-walled carbon nanotubes (SWCNTs) under axial compression. The effects of nanotube length and diameter on the buckling modes and the critical buckling loads are systematically studied. The lengths of SWCNTs vary from 1.5 to 30 nm and the diameters vary from 0.3 to 4.5...
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