复合材料加筋圆柱壳稳定性的非线性有限元分析

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1989, Vol. 10 ›› Issue (6): 246-253.

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A FINITE ELEMENT ANALYSIS OF NONLINEAR INSTABILITY FOR LAMINATED COMPOSITE CYLINDRICAL SHELLS WITH LONGITUDINAL STIFFENERS AND TRANSVERSE FRAMES

He Jianguo¹, Hu Xunchuan¹, Li Songnian¹, Xing Tianan²

1. Beijing University of Aeronautics aid Astronautics;2. Beijing General Design Department of Precision Machinery

Received:1988-04-05 Revised:1900-01-01 Online:1989-06-25 Published:1989-06-25

Abstract

Abstract:

A nonlinear finite element based on the Total Lagrangian Incremental Formulation of a two-dimensional layered anisotropic medium is developed and its use in buckling as well as postbuckling analysis of stiffened layered composite shells is demonstrated via examples under pure axial compressive loading.A finite element based on Sander's shell theory with transverse shear strains is also presented.The paper gives stiffness matrix of a square shell element,a straight beam and a curved beam element.Finally .several example, problems are given.

Key words: composite, shell, buckling, finite element methods

He Jianguo;Hu Xunchuan;Li Songnian;Xing Tianan. A FINITE ELEMENT ANALYSIS OF NONLINEAR INSTABILITY FOR LAMINATED COMPOSITE CYLINDRICAL SHELLS WITH LONGITUDINAL STIFFENERS AND TRANSVERSE FRAMES[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1989, 10(6): 246-253.

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A FINITE ELEMENT ANALYSIS OF NONLINEAR INSTABILITY FOR LAMINATED COMPOSITE CYLINDRICAL SHELLS WITH LONGITUDINAL STIFFENERS AND TRANSVERSE FRAMES

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