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Title:	Size dependent nonlinear elastic scaling of multiwalled carbon nanotubes
Author:	Arias Vicente, Irene; Arroyo Balaguer, Marino
Other authors:	Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III; Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
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 anharmonic 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.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Física::Física de l'estat sòlid::Propietats mecàniques -Nanotubes, Carbon -Nanotubs de carboni
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Document type:	Article - Published version Article
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