加载和卸载过程中复合材料叠层圆柱曲板后屈曲路径的研究

董万林; 黄小清

加载和卸载过程中复合材料叠层圆柱曲板后屈曲路径的研究

华南理工大学

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出版历程
- 收稿日期: 1989-06-09
- 刊出日期: 1990-07-15

A Study of the Postbuckling Path of Cylindricaily Curved Panels of Laminated Composite Materials during Loading and Unloading

Dept. of Eng. Mech., South China Univ. of Tech., Guangzhou

摘要

摘要: 本文用动态松弛法研究了在加载和卸载过程中复合材料叠层圆柱曲板的后屈曲路径,发现了加载路径与卸载路径不重合的现象,给出了在均匀单轴压力作用下的十字叠层圆柱曲板在两种边界条件下的数值结果,并讨论了层数、曲率半径、初始几何缺陷等因素对后屈曲路径的影响.

Abstract: In this paper,Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading.The phenomenon that loading paths do not coincide with unloading paths has been found.Numerical results are given for cylindrically curved cross-ply panels subjected to uniform uniaxial compression under two types of boundary conditions.The influence of the number of layers,the panels curvature and the initial imperfection on the postbuckling paths is discussed.

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参考文献(19)

[1]	Chan,D.P.,An analytical study of the post-buckling of laminated,anisotropic plates,Ph.D.Dissertation,Case Western Reserve University,Jan.(1971).
[2]	Prabhakara.M.K.and C.Y.Chia,Post-buckling behavior of rectangular orthotropic plates,J.Mech.Engng Sci.,15(1972),25-33.
[3]	Prabhakara,M.K.and C.Y.Chia,Post-buckling of angle-ply and anisotropic plates,Ingenieur-Archiv.,45(1976),131-140.
[4]	Prabhakara,M.K.,Post-buckling behavior of simply-supported cross-ply rectangular plates,Aeronaut.Quart.,27(1976),309-316.
[5]	Chia,C.Y.,Nonlinear Analysis of Plates,McGraw-Hill,New York(1980).
[6]	Chia,C,Y.,两邻边夹紧、其它边简支的正交各向异性矩形板时非线性振动和过屈曲.武汉工业大学学报.4(1986).
[7]	Stein,M.,Postbuckling of orthotropic composite plates loaded in compression,AlAA J.,21,12(1983),1729-1735.
[8]	Stein,M.,Postbuckling of long orthotropic plates under combined loading,AlAA J.,23,8(1985),1267-1272.
[9]	Stein,M.,Postbuckling of long orthotropic plates in combined shear and compression,AIAA J.,23,5(1985),788-794.
[10]	Zhang,Y.and F.L.Matthews,Postbuckling behavior of anisotropic laminated plates under pure shear and shear combined with compressive loading,AIAA J.,22,2(1984),281-286.
[11]	Hui,D.,Imperfection sensitivity of axially compressed laminated flat plates due to bendingstretching coupling,Int.J.Solids and Structures,22,1(1986),13-22.
[12]	Raju,K.K.and G.V.Rao,Finite-element analysis of postbuckling behavior of cylindrically orthotropic circular plates,Fib.and Tech.,19,2(1983),145-154.
[13]	Dumir,P.C.and K.N.Khatri,Axisymmetric postbuckling of orthotropic thin tapered annular plates,J.of Composite Materials,19,5(1985),392-407.
[14]	Feng,M.,Energy theory for postbuckling of composite plates under combined loading,Computers & Structures,16,1-4(1983),423-431.
[15]	Zhang,Y.and F.L.Matthews,Initial buckling of curved panels of generally layered composite materials,Composite Structures,1,1(1983),3-30.
[16]	Zhang,Y.and F.L.Matthews,Postbuckling behavior of curved panels of generally layered composite materials,Int.J.of Composite Structures,1,2(1983),115-136.
[17]	Zhang,Y.and F.L.Matthews,Large deflection behavior of simply supported laminated panels under in-plane loading,ASME,J.of Appl.Mech.,52,3(1985),553-558.
[18]	董万林、黄小清、范赋群.初始缺陷对正交叠层圆柱曲板临界载荷的影响,华南理工大学学报,17,3(1989),19-26.
[19]	黄小清、董万林.边界条件对双模量叠层板大挠度弯曲的影响.华南理工大学学报,16,3(1988),39-45.