Axial Stiffness of Multiwalled Carbon Nanotubes

Details Axial Stiffness of Multiwalled Carbon Nanotubes Axial Stiffness of Multiwalled Carbon Nanotubes

2011-04-07

arxiv.org/abs/1104.1350v1

Physics

Condensed Matter

Materials Science

6 pages, 3 figures

Scientific paper

The axial stiffness of MWCNTs is demonstrated to be determined only by several external shells (usually 3-5 and up to 15 for the extremely large nanotubes and high elongations) what is in a good agreement with experimentally observed inverse relation between the radius and Young modulus (i.e., stiffness) of MWCNTs. This result is a consequence of the van der Waals intershell interaction. The interpolating formula is obtained for the actual axial stiffness of MWCNT as a function of the tube external radius and elongation.

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