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American Physical Society Member Subscription Copy
 

Summary: HYSICAL
EVIEW
ETTERS
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American Physical Society
Member Subscription Copy
Library or Other Institutional Use Prohibited Until 2013 Articles published week ending 29 FEBRUARY 2008
Volume 100, Number 8
Published by the
Size-Dependent Nonlinear Elastic Scaling of Multiwalled Carbon Nanotubes
Irene Arias and Marino Arroyo*
Dept. Applied Mathematics 3, LaCa`N, Universitat Polite`cnica de Catalunya (UPC), Barcelona 08034, Spain
(Received 20 August 2007; published 29 February 2008)
We characterize through large-scale simulations the nonlinear elastic response of multiwalled carbon
nanotubes (MWCNTs) 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 anharmonic energy-
deformation exponent. The mechanical response of MWCNTs is found to be strongly size dependent,

  

Source: Arroyo, Marino - Departament de Matemàtica Aplicada III, Universitat Politècnica de Catalunya

 

Collections: Engineering; Materials Science