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Mechanical buckling of multi-walled carbon nanotubes: The effects of slenderness ratio

✍ Scribed by Jian-Ming Lu; Chi-Chuang Hwang; Qu-Yuan Kuo; Yun-Che Wang

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
221 KB
Volume
40
Category
Article
ISSN
1386-9477

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✦ Synopsis

Buckling strengths, in terms of compressive strain, of single-, double-and triple-walled carbon nanotubes (CNTs) are investigated to study the effects of slenderness ratio (S R ) via the molecular dynamics (MD) simulations with the Tersoff potential. Under constant ratio of slenderness, the CNTs with small S R behave like a continuum shell object. For large S R 's, multi-walled CNTs exhibit the characteristics of the Euler columns. In addition, smaller nanotubes possess higher buckling-resistance. The buckling strength of multiwalled nanotubes is controlled by the size of their outermost shell.

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