Prediction of effective moduli of carbon nanotube-reinforced composites with waviness and debonding

被引：110
|
作者：
Shao, L. H. [1 ,5 ]
Luo, R. Y. [3 ]
Bai, S. L. [1 ,4 ]
Wang, J. [1 ,2 ]
机构：
[1] Peking Univ, LTCS, Beijing 100871, Peoples R China
[2] Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R China
[3] Beihang Univ, Sch Sci, Beijing 100083, Peoples R China
[4] Peking Univ, Coll Engn, Dept Adv Mat & Nanotechnol, Beijing 100871, Peoples R China
[5] Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
来源：
COMPOSITE STRUCTURES | 2009年 / 87卷 / 03期
关键词：
Carbon nanotube; Composite; Waviness; Debonding; Effective modulus; NONLINEAR ELASTIC BEHAVIOR; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; FIBER WAVINESS; MATRIX COMPOSITE; NANOCOMPOSITES; FABRICATION; INCLUSIONS; STIFFNESS; MODEL;
D O I：
10.1016/j.compstruct.2008.02.011
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Carbon nanotubes (CNTs) have been regarded as ideal reinforcements of high-performance composites with enormous applications. However, the waviness of the CNTs and the interfacial bonding condition between them and the matrix are two key factors that influence the reinforcing efficiency. In this paper, the effects of the waviness of the CNTs and the interfacial debonding between them and the matrix on the effective moduli of CNT-reinforced composites are studied. A simple analytical model is presented to investigate the influence of the waviness on the effective moduli. Then, two methods are proposed to examine the influence of the debonding. It is shown that both the waviness and debonding can significantly reduce the stiffening effect of the CNTs. The effective moduli are very sensitive to the waviness when the latter is small, and this sensitivity decreases with the increase of the waviness. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：274 / 281
页数：8
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