Postbuckling of nanotube-reinforced composite cylindrical shells in thermal environments, Part I: Axially-loaded shells

被引：349
作者：
Shen, Hui-Shen [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Ocean & Civil Engn, Shanghai 200030, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200030, Peoples R China
来源：
COMPOSITE STRUCTURES | 2011年 / 93卷 / 08期
关键词：
Nanocomposites; Functionally graded materials; Cylindrical shell; Postbuckling; Axial compression; WALLED CARBON NANOTUBES; MOLECULAR-DYNAMICS SIMULATIONS; EFFECTIVE ELASTIC PROPERTIES; BUCKLING ANALYSIS; BEHAVIOR; MECHANISMS; PLATES; BEAMS;
D O I：
10.1016/j.compstruct.2011.02.011
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A postbuckling analysis is presented for nanocomposite cylindrical shells reinforced by single-walled carbon nanotubes (SWCNTs) subjected to axial compression in thermal environments. Two kinds of carbon nanotube-reinforced composite (CNTRC) shells, namely, uniformly distributed (UD) and functionally graded (FG) reinforcements, are considered. The material properties of FG-CNTRCs are assumed to be graded in the thickness direction, and are estimated through a micromechanical model. The governing equations are based on a higher order shear deformation theory with a von Karman-type of kinematic nonlinearity. The thermal effects are also included and the material properties of CNTRCs are assumed to be temperature-dependent. A singular perturbation technique is employed to determine the buckling loads and postbuckling equilibrium paths. The numerical illustrations concern the postbuckling behavior of axially-loaded, perfect and imperfect, FG-CNTRC cylindrical shells under different sets of thermal environmental conditions. The results for UD-CNTRC shell, which is a special case in the present study, are compared with those of the FG-CNTRC shell. The results show that the linear functionally graded reinforcements can increase the buckling load as well as postbuckling strength of the shell under axial compression. The results reveal that the CNT volume fraction has a significant effect on the buckling load and postbuckling behavior of CNTRC shells. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2096 / 2108
页数：13
相关论文
共 42 条
[1]   A comprehensive closed form micromechanics model for estimating the elastic modulus of nanotube-reinforced composites [J].
Anumandla, Vijay ;
Gibson, Ronald F. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2006, 37 (12) :2178-2185
[2]   Thermal properties and percolation in carbon nanotube-polymer composites [J].
Bonnet, P. ;
Sireude, D. ;
Garnier, B. ;
Chauvet, O. .
APPLIED PHYSICS LETTERS, 2007, 91 (20)
[3]   Chirality- and size-dependent elastic properties of single-walled carbon nanotubes [J].
Chang, TC ;
Geng, JY ;
Guo, XM .
APPLIED PHYSICS LETTERS, 2005, 87 (25) :1-3
[4]   Collapse of single-wall carbon nanotubes is diameter dependent [J].
Elliott, JA ;
Sandler, JKW ;
Windle, AH ;
Young, RJ ;
Shaffer, MSP .
PHYSICAL REVIEW LETTERS, 2004, 92 (09) :095501-1
[5]   Carbon nanotube reinforced composites: Potential and current challenges [J].
Esawi, Amal M. K. ;
Farag, Mahmoud M. .
MATERIALS & DESIGN, 2007, 28 (09) :2394-2401
[6]   Buckling analysis of functionally graded plates subjected to uniaxial loading [J].
Feldman, E ;
Aboudi, J .
COMPOSITE STRUCTURES, 1997, 38 (1-4) :29-36
[7]   Thermo-mechanical properties of randomly oriented carbon/epoxy nanocomposites [J].
Fidelus, JD ;
Wiesel, E ;
Gojny, FH ;
Schulte, K ;
Wagner, HD .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2005, 36 (11) :1555-1561
[8]   Vibrations of carbon nanotube-reinforced composites [J].
Formica, Giovanni ;
Lacarbonara, Walter ;
Alessi, Roberto .
JOURNAL OF SOUND AND VIBRATION, 2010, 329 (10) :1875-1889
[9]  
Fukuda H., 1974, Fiber Science and Technology, V7, P207, DOI DOI 10.1016/0015-0568(74)90018-9
[10]   Molecular dynamics simulations of the elastic moduli of polymer-carbon nanotube composites [J].
Griebel, M ;
Hamaekers, J .
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2004, 193 (17-20) :1773-1788
12345