Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster
Nanoindentation is a promising technique for deducing the elastic property of carbon nanotubes (CNTs). The paper presents an atomistic study on the nanoindentation mechanisms of single-walled and multiwalled CNTs and CNT clusters, through which the deformation characteristics are linked with CNT ela...
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Online Access: | http://dx.doi.org/10.1155/2008/271763 |
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doaj-efa57484e3964cfcbae6485e4b4a818b2020-11-24T21:33:43ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292008-01-01200810.1155/2008/271763271763Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube ClusterLing Liu0Guoxin Cao1Xi Chen2Columbia Nanomechanics Research Center, Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY 10027-6699, USAColumbia Nanomechanics Research Center, Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY 10027-6699, USAColumbia Nanomechanics Research Center, Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY 10027-6699, USANanoindentation is a promising technique for deducing the elastic property of carbon nanotubes (CNTs). The paper presents an atomistic study on the nanoindentation mechanisms of single-walled and multiwalled CNTs and CNT clusters, through which the deformation characteristics are linked with CNT elastic stiffness. The assembly of individual single-walled CNTs (SWCNTs) into multiwalled CNTs (MWCNTs) and CNT clusters would significantly increase the buckling resistance in terms of withstanding the indentation load. Reverse analysis algorithms are proposed to extract the CNT stiffness by utilizing the indentation force-depth data measured from the prebuckling regimes. The numerical studies carried out in this paper may be used to guide the nanoindentation experiments, explain and extract useful data from the test, as well as stimulate new experiments.http://dx.doi.org/10.1155/2008/271763 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ling Liu Guoxin Cao Xi Chen |
spellingShingle |
Ling Liu Guoxin Cao Xi Chen Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster Journal of Nanomaterials |
author_facet |
Ling Liu Guoxin Cao Xi Chen |
author_sort |
Ling Liu |
title |
Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster |
title_short |
Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster |
title_full |
Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster |
title_fullStr |
Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster |
title_full_unstemmed |
Mechanisms of Nanoindentation on Multiwalled Carbon Nanotube and Nanotube Cluster |
title_sort |
mechanisms of nanoindentation on multiwalled carbon nanotube and nanotube cluster |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2008-01-01 |
description |
Nanoindentation is a promising technique for deducing the elastic property of carbon nanotubes (CNTs). The paper presents an atomistic study on the nanoindentation mechanisms of single-walled and multiwalled CNTs and CNT clusters, through which the deformation characteristics are linked with CNT elastic stiffness. The assembly of individual single-walled CNTs (SWCNTs) into multiwalled CNTs (MWCNTs) and CNT clusters would significantly increase the buckling resistance in terms of withstanding the indentation load. Reverse analysis algorithms are proposed to extract the CNT stiffness by utilizing the indentation force-depth data measured from the prebuckling regimes. The numerical studies carried out in this paper may be used to guide the nanoindentation experiments, explain and extract useful data from the test, as well as stimulate new experiments. |
url |
http://dx.doi.org/10.1155/2008/271763 |
work_keys_str_mv |
AT lingliu mechanismsofnanoindentationonmultiwalledcarbonnanotubeandnanotubecluster AT guoxincao mechanismsofnanoindentationonmultiwalledcarbonnanotubeandnanotubecluster AT xichen mechanismsofnanoindentationonmultiwalledcarbonnanotubeandnanotubecluster |
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1725952285233643520 |