Stability characteristics of single-walled boron nitride nanotubes

被引：39

作者：

Ansari, R. ^{[1
]}

Rouhi, S. ^{[2
]}

Mirnezhad, M. ^{[1
]}

Aryayi, M. ^{[1
]}

机构：

[1] Univ Guilan, Dept Mech Engn, Rasht, Iran

[2] Islamic Azad Univ, Young Researchers Club, Langroud Branch, Langroud, Guilan, Iran

来源：

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2015年 / 15卷 / 01期

关键词：

Boron nitride nanotubes; Buckling; Finite element model; Density functional theory; GENERALIZED GRADIENT APPROXIMATION; STRUCTURAL MECHANICS APPROACH; FINITE-ELEMENT MODEL; CARBON NANOTUBES; ELASTIC PROPERTIES; MODULUS; PSEUDOPOTENTIALS; EXCHANGE;

D O I：

10.1016/j.acme.2014.01.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Boron nitride nanotubes, like carbon nanotubes, possess extraordinary mechanical properties. Herein, a three-dimensional finite element model is proposed in which the nanotubes are modeled using the principles of structural mechanics. To obtain the properties of this model, a linkage between the molecular mechanics and the density functional theory is constructed. The model is utilized to study the buckling behavior of single-walled boron nitride nanotubes with different geometries and boundary conditions. It is shown that at the same radius, longer nanotubes are less stable. However, for sufficiently long nanotubes the effect of side length decreases. (C) 2014 Politechnika Wroclawska. Published by Elsevier Urban & Partner Sp. z o.o. All rights reserved.

引用

页码：162 / 170

页数：9

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