Stochastic post buckling analysis of laminated composite cylindrical shell panel subjected to hygrothermomechanical loading

被引：28
作者：
Lal, Achchhe [1 ]
Singh, B. N. [2 ]
Kale, Sushi [1 ]
机构：
[1] SV Natl Inst Technol, Dept Mech Engn, Surat 395007, India
[2] Indian Inst Technol, Dept Aerosp Engn, Kharagpur 721302, W Bengal, India
来源：
COMPOSITE STRUCTURES | 2011年 / 93卷 / 04期
关键词：
Laminated composite cylindrical shell panel; Random system properties; Second order statistics; Post buckling; FREE-VIBRATION; POSTBUCKLING RESPONSE; PLATES; BEHAVIOR;
D O I：
10.1016/j.compstruct.2010.11.005
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, the effect of random system properties on the post buckling load of geometrically nonlinear laminated composite cylindrical shell panel subjected to hygrothermomechanical loading is investigated. System parameters are assumed as independent random variables. The higher order shear deformation theory and von-Karman nonlinear kinematics are used for basic formulation. The elastic and hygrothermal properties of the composite material are considered to be dependent on temperature and moisture concentration using micromechanical approach. A direct iterative based C nonlinear finite element method in conjunction with first-order perturbation technique proposed by present author for the plate is extended for shell panel subjected to hygrothermomechanical loading to compute the second-order statistics (mean and variances) of laminated composite cylindrical shell panel. The effect of random system properties, plate geometry, stacking sequences, support conditions, fiber volume fractions and temperature and moisture distributions on hygrothermomechanical post-buckling load of the laminated cylindrical shell panel are presented. The performance of outlined stochastic approach has been validated by comparing the present results with those available in the literature and independent Monte Carlo simulation. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：1187 / 1200
页数：14
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