@inproceedings{60ffbcc57a074b6dbb233dbf2c979515,
title = "Non-twisted and twisted CNT bundles under axial tensile and compressive loads",
abstract = "Compressive and tensile properties of non-twisted and twisted carbon nanotube (CNT) bundles are studied using molecular dynamics (MD) simulations. The results reveal that non-twisted CNT bundles exhibit better compressive and tensile properties than twisted CNT bundles. When the twist angle of a CNT bundle is greater than 60°, its buckling load dropped considerably due to the significant curve geometries of the surrounding single-walled carbon nanotubes (SWCNTs). Twisted CNT bundles also do not demonstrate good tensile properties. During tensile loading, the intertube distance in CNT bundle with twisting angle greater than 75° will decrease as the strain increases. This gives rise to increasing intertube van der Waals forces until the intertube distance falls below 2.0{\AA}. At this time, the repulsive force between the SWCNTs suddenly increases causing the SWCNTs to repel one another at junction areas where they overlap. As a result, twisted CNT bundles tend to fail at these junction areas with lower failure load and strain.",
keywords = "Bundles, Carbon nanotubes, Compression, Molecular dynamics, Tension",
author = "Liew, {K. M.} and Wong, {C. H.} and Tan, {M. J.} and Chuang, {P. D.}",
year = "2007",
language = "English",
isbn = "3908451302",
volume = "121-123",
series = "Solid State Phenomena",
publisher = "Trans Tech Publications Ltd.",
pages = "1415--1418",
booktitle = "Nanoscience and Technology",
address = "Switzerland",
note = "China International Conference on Nanoscience and Technology, ChinaNANO 2005 ; Conference date: 09-06-2005 Through 11-06-2005",
}