Size dependent nonlinear elastic scaling of multiwalled carbon nanotubes
Author (s): Arias I., Arroyo, M.Journal: Physical Review Letters
Volume: 100, Issue 8
Date: 2008
Abstract:
We characterize through large-scale simulations the nonlinear elastic response of multi-walled carbon nanotubes (MWNCNTs) in torsion and bending. We identify a unified law consisting of two distinct power-law regimes in the energy-deformation relation. This law encapsulates the complex mechanics of rippling and is described in terms of elastic constants, a critical length-scale and an harmonic energy-deformation exponent. The mechanical response of MWCNTs is found to be strongly size-dependent, in that the critical strain beyond which they behave nonlinearly scales as the inverse of their diameter. These predictions are consistent with available experimental observations.
Bibtex:
@article{PhysRevLett.100.085503,
author = {Arias, I. and Arroyo, M.},
title = {Size-Dependent Nonlinear Elastic Scaling of Multiwalled Carbon Nanotubes},
journal = {Phys. Rev. Lett.},
volume = {100},
issue = {8},
pages = {085503},
numpages = {4},
year = {2008},
month = {Feb},
publisher = {American Physical Society},
doi = {10.1103/PhysRevLett.100.085503},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.100.085503}
}
