On the modeling of eigenmodes and eigenfrequencies of carbon graphene sheets under the influence of vacancy defects

Title: On the modeling of eigenmodes and eigenfrequencies of carbon graphene sheets under the influence of vacancy defects
Creator: Kazemi, Seyedeh Alieh; Yengejeh, Sadegh Imani; Öchsner, Andreas
Relation: Journal of Nano Research Vol. 38, p. 101-106
Publisher Link: http://dx.doi.org/10.4028/www.scientific.net/JNanoR.38.101
Publisher: Trans Tech Publications
Resource Type: journal article
Date: 2016
Description: The vibrational behavior of defected graphene sheets was investigated via finite element analysis. The simulations were carried out for perfect and imperfect nanosheets. This study was conducted to examine the influence of vacant sites on these nanostructures. In the current study, a graphene sheet is considered as a space frame. The natural frequency and corresponding mode shapes of the perfect and defective nanosheets were obtained and compared. Results are presented as diagrams stating the natural frequency of graphene sheets with respect to the amount of vacancy defects. The results indicate that the natural frequency of nanosheets reduced by introducing atomic defects to the configuration of these nanomaterials. Such impurities lower the vibrational stability of graphene sheets.
Subject: finite element method; mechanical property; nanosheet; natural frequency; vacancy
Identifier: http://hdl.handle.net/1959.13/1347276
Identifier: uon:30010
Identifier: ISSN:1662-5250
Language: eng
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