Mechanical characterization of nanoindented graphene via molecular dynamics simulations

The mechanical behavior of graphene under various indentation depths, velocities, and temperatures is studied using molecular dynamics analysis. The results show that the load, elastic and plastic energies, and relaxation force increased with increasing indentation depth and velocity. Nanoindentatio...

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Detalles Bibliográficos
Autores principales: Fang, Te-Hua, Wang, Tong Hong, Yang, Jhih-Chin, Hsiao, Yu-Jen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211995/
https://www.ncbi.nlm.nih.gov/pubmed/21813011
http://dx.doi.org/10.1186/1556-276X-6-481
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author Fang, Te-Hua
Wang, Tong Hong
Yang, Jhih-Chin
Hsiao, Yu-Jen
author_facet Fang, Te-Hua
Wang, Tong Hong
Yang, Jhih-Chin
Hsiao, Yu-Jen
author_sort Fang, Te-Hua
collection PubMed
description The mechanical behavior of graphene under various indentation depths, velocities, and temperatures is studied using molecular dynamics analysis. The results show that the load, elastic and plastic energies, and relaxation force increased with increasing indentation depth and velocity. Nanoindentation induced pile ups and corrugations of the graphene. Resistance to deformation decreased at higher temperature. Strong adhesion caused topological defects and vacancies during the unloading process.
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spelling pubmed-32119952011-11-09 Mechanical characterization of nanoindented graphene via molecular dynamics simulations Fang, Te-Hua Wang, Tong Hong Yang, Jhih-Chin Hsiao, Yu-Jen Nanoscale Res Lett Nano Express The mechanical behavior of graphene under various indentation depths, velocities, and temperatures is studied using molecular dynamics analysis. The results show that the load, elastic and plastic energies, and relaxation force increased with increasing indentation depth and velocity. Nanoindentation induced pile ups and corrugations of the graphene. Resistance to deformation decreased at higher temperature. Strong adhesion caused topological defects and vacancies during the unloading process. Springer 2011-08-03 /pmc/articles/PMC3211995/ /pubmed/21813011 http://dx.doi.org/10.1186/1556-276X-6-481 Text en Copyright ©2011 Fang et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Fang, Te-Hua
Wang, Tong Hong
Yang, Jhih-Chin
Hsiao, Yu-Jen
Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title_full Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title_fullStr Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title_full_unstemmed Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title_short Mechanical characterization of nanoindented graphene via molecular dynamics simulations
title_sort mechanical characterization of nanoindented graphene via molecular dynamics simulations
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211995/
https://www.ncbi.nlm.nih.gov/pubmed/21813011
http://dx.doi.org/10.1186/1556-276X-6-481
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