A study on mechanical strength and stability of partially-fused carbon nanotube junctions

被引：5

作者：

Bhusal, Shusil ^{[1
,2
]}

Sihn, Sangwook ^{[1
,3
]}

Varshney, Vikas ^{[1
]}

Roy, Ajit K. ^{[1
]}

机构：

[1] Air Force Res Lab, Mat & Mfg Directorate, Dayton, OH 45433 USA

[2] Univ Technol Corp, Beavercreek, OH 45432 USA

[3] Univ Dayton, Res Inst, 300 Coll Pk, Dayton, OH 45469 USA

来源：

CARBON TRENDS | 2021年 / 3卷

关键词：

Carbon nanotube; CNT; Carbon nanotube junctions (CNTJ); CNT junction strength; CNT partial overlap junction; CNT full overlap junction;

D O I：

10.1016/j.cartre.2021.100039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic approach has been developed to generate and predict failure strengths of single-walled carbon nanotube (CNT) junctions with various sets of non-hexagonal defects (i.e., five-, seven-, eight-membered carbon rings). Each generated junction is optimized using molecular mechanics combined with molecular dynamics simulations to attain globally energy-minimized structures. The energetic stability of barely-fused junctions is compared with fully-fused cases. Furthermore, CNT junctions with different degrees of overlaps are analyzed and discussed in detail for the failure strength with maximum stresses and strains as well as their failure mechanisms. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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