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Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes

Y. Xiao, C. Y. Wang, Y. T. Feng, Yuntian Feng Orcid Logo, Chengyuan Wang Orcid Logo

International Journal of Applied Mechanics, Volume: 09, Issue: 03, Start page: 1750032

Swansea University Authors: Yuntian Feng Orcid Logo, Chengyuan Wang Orcid Logo

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DOI (Published version): 10.1142/S1758825117500326

Abstract

A hybrid nanotube (HNT) is fabricated by coating carbon nanotubes (CNTs) with a concentric coating layer. Vibration of the HNTs is of great interest due to its potential applications in nano-resonators, nanosensors/actuators and nanogenerators. In particular, it is expected that the super stiff but...

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Published in: International Journal of Applied Mechanics
ISSN: 1758-8251 1758-826X
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34342
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first_indexed 2017-06-14T20:10:33Z
last_indexed 2018-02-09T05:24:21Z
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spelling 2017-08-14T12:52:37.8236555 v2 34342 2017-06-14 Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes d66794f9c1357969a5badf654f960275 0000-0002-6396-8698 Yuntian Feng Yuntian Feng true false fdea93ab99f51d0b3921d3601876c1e5 0000-0002-1001-2537 Chengyuan Wang Chengyuan Wang true false 2017-06-14 CIVL A hybrid nanotube (HNT) is fabricated by coating carbon nanotubes (CNTs) with a concentric coating layer. Vibration of the HNTs is of great interest due to its potential applications in nano-resonators, nanosensors/actuators and nanogenerators. In particular, it is expected that the super stiff but very light CNTs would largely up-shift the vibration frequency and improve the performance of the achieved nanodevices. On the other hand, the hybrid structures may lead to the defects at the CNT-coating layer interface, which would down-shift the frequency and impair the integrity of the HNT. This paper aims to examine these issues by using a multiple-beam model for the pristine HNTs and a finite element model for the defective ones. The frequencies are obtained for the first five modes of the HNTs reinforced by a single-wall or a multi-wall CNT. It was shown that the strengthening effect of the CNTs is substantial for the high frequency vibrations of the HNTs with a thin coating layer. In this case, the inverse effect of the interfacial defects can also be observed. Journal Article International Journal of Applied Mechanics 09 03 1750032 1758-8251 1758-826X Hybrid nanotubes; carbon nanotubes; coating layer; vibration; interface defect 31 12 2017 2017-12-31 10.1142/S1758825117500326 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2017-08-14T12:52:37.8236555 2017-06-14T16:23:08.9070888 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Y. Xiao 1 C. Y. Wang 2 Y. T. Feng 3 Yuntian Feng 0000-0002-6396-8698 4 Chengyuan Wang 0000-0002-1001-2537 5 0034342-15062017083504.pdf xiao2017v2.pdf 2017-06-15T08:35:04.6770000 Output 1461936 application/pdf Accepted Manuscript true 2018-05-17T00:00:00.0000000 true eng
title Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
spellingShingle Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
Yuntian Feng
Chengyuan Wang
title_short Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
title_full Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
title_fullStr Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
title_full_unstemmed Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
title_sort Effect of CNTs and Interfacial Defects on the Vibration of CNT-Based Hybrid Nanotubes
author_id_str_mv d66794f9c1357969a5badf654f960275
fdea93ab99f51d0b3921d3601876c1e5
author_id_fullname_str_mv d66794f9c1357969a5badf654f960275_***_Yuntian Feng
fdea93ab99f51d0b3921d3601876c1e5_***_Chengyuan Wang
author Yuntian Feng
Chengyuan Wang
author2 Y. Xiao
C. Y. Wang
Y. T. Feng
Yuntian Feng
Chengyuan Wang
format Journal article
container_title International Journal of Applied Mechanics
container_volume 09
container_issue 03
container_start_page 1750032
publishDate 2017
institution Swansea University
issn 1758-8251
1758-826X
doi_str_mv 10.1142/S1758825117500326
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description A hybrid nanotube (HNT) is fabricated by coating carbon nanotubes (CNTs) with a concentric coating layer. Vibration of the HNTs is of great interest due to its potential applications in nano-resonators, nanosensors/actuators and nanogenerators. In particular, it is expected that the super stiff but very light CNTs would largely up-shift the vibration frequency and improve the performance of the achieved nanodevices. On the other hand, the hybrid structures may lead to the defects at the CNT-coating layer interface, which would down-shift the frequency and impair the integrity of the HNT. This paper aims to examine these issues by using a multiple-beam model for the pristine HNTs and a finite element model for the defective ones. The frequencies are obtained for the first five modes of the HNTs reinforced by a single-wall or a multi-wall CNT. It was shown that the strengthening effect of the CNTs is substantial for the high frequency vibrations of the HNTs with a thin coating layer. In this case, the inverse effect of the interfacial defects can also be observed.
published_date 2017-12-31T03:42:36Z
_version_ 1763751971979788288
score 10.999547

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