Theoretical model of double-walled carbon nanotube pullout from a composite matrix

被引：4
|
作者：
Zhou LiJun [1 ,2 ]
Kang YiLan [1 ]
Guo JianGang [1 ]
机构：
[1] Tianjin Univ, Sch Mech Engn, Tianjin Key Lab Modern Engn Mech, Tianjin 300072, Peoples R China
[2] Tianjin Univ Technol & Educ, Dept Mech Engn, Tianjin 300222, Peoples R China
来源：
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2012年 / 55卷 / 06期
基金：
中国国家自然科学基金;
关键词：
double-walled carbon nanotubes; pullout; residual stress; van der Waals forces; INTERFACIAL STRESS TRANSFER; LOAD-TRANSFER; NANOTUBES/POLYMER COMPOSITES; POLYMER COMPOSITES; FIBER PULLOUT; STRENGTH; SYSTEM;
D O I：
10.1007/s11433-012-4731-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A micromechanical model of double-walled carbon nanotube (DWCNT) pullout from a composite matrix is presented with the interfacial residual stress and van der Waals (vdW) forces taken into consideration. The interfacial residual stress induced by thermal expansion coefficient (TEC) mismatch is introduced via thermo-elastic constitutive relations. The influence of vdW interactions between two layers of DWCNT on the interfacial stress distributions of DWCNT and matrix is analyzed. The analytical expressions of interfacial shear stress and the axial stresses of DWCNT and matrix are derived, respectively. Furthermore, the influences of temperature change, interfacial friction coefficient, DWCNT aspect ratio, DWCNT volume fraction and the relative modulus between DWCNT and matrix are illustrated and discussed.
引用
收藏
页码：1004 / 1009
页数：6
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