Buckling of symmetrically laminated rectangular plates under parabolic edge compressions

被引:41
作者
Tang, Yuhua [1 ]
Wang, Xinwei [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, MOE Key Lab Struct Mech & Control Aircraft, Nanjing 210016, Peoples R China
基金
美国国家科学基金会;
关键词
Buckling; Nonlinearly distributed load; Symmetrically laminated rectangular plates; Rayleigh-Ritz method; GRAPHITE/EPOXY COMPOSITE PLATE; 2 OPPOSITE SIDES; UNIAXIAL COMPRESSION; AXIAL LOADS; BEHAVIOR;
D O I
10.1016/j.ijmecsci.2010.11.005
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Buckling analysis of symmetrically laminated rectangular plates with parabolic distributed in-plane compressive loadings along two opposite edges is performed using the Rayleigh-Ritz method. Classical laminated plate theory is adopted. Stress functions satisfying all stress boundary conditions are constructed based on the Chebyshev polynomials. Displacement functions for buckling analysis are constructed by Chebyshev polynomials multiplying with functions that satisfy either simply supported or clamped boundary condition along four edges. Methodology and procedures are worked out in detail. Buckling loads for symmetrically laminated plates with four combinations of boundary conditions are obtained. The proposed method is verified by comparing results to data obtained by the differential quadrature method (DQM) and the finite element method (FEM). Numerical example also shows that the double sine series displacement for simply supported symmetrically laminated plates having bending-twisting coupling may overestimate the stiffness, thus providing higher buckling loads. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:91 / 97
页数:7
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