Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64876
Type: Artigo
Title: Entanglement and the nonlinear elastic behavior of forests of coiled carbon nanotubes
Author: Coluci, V. R.
Fonseca, A. F.
Galvão, D. S.
Daraio, C.
Abstract: Helical or coiled nanostructures have been objects of intense experimental and theoretical studies due to their special electronic and mechanical properties. Recently, it was experimentally reported that the dynamical response of a foamlike forest of coiled carbon nanotubes under mechanical impact exhibits a nonlinear, non-Hertzian behavior, with no trace of plastic deformation. The physical origin of this unusual behavior is not yet fully understood. In this Letter, based on analytical models, we show that the entanglement among neighboring coils in the superior part of the forest surface must be taken into account for a full description of the strongly nonlinear behavior of the impact response of a drop ball onto a forest of coiled carbon nanotubes.
Helical or coiled nanostructures have been objects of intense experimental and theoretical studies due to their special electronic and mechanical properties. Recently, it was experimentally reported that the dynamical response of a foamlike forest of coiled carbon nanotubes under mechanical impact exhibits a nonlinear, non-Hertzian behavior, with no trace of plastic deformation. The physical origin of this unusual behavior is not yet fully understood. In this Letter, based on analytical models, we show that the entanglement among neighboring coils in the superior part of the forest surface must be taken into account for a full description of the strongly nonlinear behavior of the impact response of a drop ball onto a forest of coiled carbon nanotubes.
Subject: Nanotubos de carbono
Nanoestruturas de carbono
Nanofios
Country: Estados Unidos
Editor: American Physical Society
Citation: Physical Review Letters. Amer Physical Soc, v. 100, n. 8, 2008.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.100.086807
Address: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.086807
Date Issue: 2008
Appears in Collections:IFGW - Artigos e Outros Documentos

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