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Torsional behavior of chiral single-walled carbon nanotubes is loading direction dependent
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10.1063/1.2739325
/content/aip/journal/apl/90/20/10.1063/1.2739325
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/20/10.1063/1.2739325
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Morphological changes for a (8, 3) nanotube under torsion.

Image of FIG. 2.
FIG. 2.

(Color online) Sthear stress vs shear strain. Note that the curves for chiral tubes are asymmetric about zero strain.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Critical buckling shear strains and (b) the quantity as function of tube chirality for SWCNTs with approximately the same diameters. Some additional data for SWCNTs with slightly larger or smaller diameters are also presented for reference. Special attentions should be paid to that (1) the maximum difference between the critical buckling strains of two loading directions may be up to 85%; and (2) for a given tube diameter, a SWCNT with a chiral angle of about 10° possesses the best torsional stability in the twisting direction, while a SWCNT with a chiral angle of about 18° has the lowest torsional stability in the untwisting direction.

Image of FIG. 4.
FIG. 4.

(Color online) Critical buckling shear strains as function of tube diameter.

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/content/aip/journal/apl/90/20/10.1063/1.2739325
2007-05-16
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Torsional behavior of chiral single-walled carbon nanotubes is loading direction dependent
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/20/10.1063/1.2739325
10.1063/1.2739325
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