Twisting Carbon Nanotube Ropes with the Mesoscopic Distinct Element Method: Geometry, Packing, and Nanomechanics

Yuezhou Wang; Igor Ostanin; Cristian Gaidəu; Traian Dumitricə

doi:10.1021/acs.langmuir.5b03208

Twisting Carbon Nanotube Ropes with the Mesoscopic Distinct Element Method: Geometry, Packing, and Nanomechanics

Yuezhou Wang, Igor Ostanin, Cristian Gaidəu, Traian Dumitricə

Mechanical Engineering

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19 Scopus citations

Abstract

The geometry and internal packing of twisted ropes composed of carbon nanotubes (CNTs) are considered, and a numerical solution in the context of the mesoscopic distinct element method (MDEM) is proposed. Compared to the state of the art, MDEM accounts in a computationally tractable manner for both the deformation of the fiber and the distributed van der Waals cohesive energy between fibers. These features enable us to investigate the torsional response in a new regime where the twisted rope develops packing rearrangements and aspect-ratio-dependent geometric nonlinearities. MDEM emerges as a robust simulation method for studying twisted agglomerates comprising semiflexible nanofibers.

Original language	English (US)
Pages (from-to)	12323-12327
Number of pages	5
Journal	Langmuir
Volume	31
Issue number	45
DOIs	https://doi.org/10.1021/acs.langmuir.5b03208
State	Published - Sep 27 2015

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© 2015 American Chemical Society.

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Twisting Carbon Nanotube Ropes with the Mesoscopic Distinct Element Method: Geometry, Packing, and Nanomechanics

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