ON THE
BENDING AND TORSION OF CARBON NANOTUBES ROPES
V. CHIROIU, L. MUNTEANU, V. P. PAUN, P. P.TEODORESCU
Abstract.
This paper presents some results concerning the applicability of carbon
nanotubes to the space elevator concept. After the development of carbon
nanotubes in the 1990s, the high strength of these materials made the
concept of an orbital skyhook feasible. A coupled atomistic-continuum
theory for escribing the bending and torsion of ropes made from
single-walled carbon nanotubes is proposed in this article. The model
couples a region described with full atomistic detail to a surrounding
region modeled with the continuum concepts. The shifted Chebyshev
polynomials of the second kind and a generalization of Vekua and Nikagadze
methods are performed on the base of a nonclassical parametrization of the
transition region. |