ARTICLE
Combined load buckling for cylindrical shells based on a symplectic elasticity approach
Jiabin Sun 1  
,   Xinsheng Xu 2,   C.W. Lim 3
 
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1
State Key Laboratory of Structure Analysis for Industrial Equipment and School of Ocean Science and Technology, Dalian University of Technology, Panjin
2
State Key Laboratory of Structure Analysis of Industrial Equipment and Department for Engineering Mechanics, Dalian University of Technology, Dalian
3
Department of Civil and Architectural Engineering, City University of Hong Kong
Publication date: 2015-11-17
 
Journal of Theoretical and Applied Mechanics 2016;54(3):705–716
 
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ABSTRACT
Buckling behavior of cylindrical shells subjected to combined pressure, torsion and axial compression is presented by employing a symplectic method. Both symmetric and non-symmetric boundary conditions are considered. Hamiltonian canonical equations are established by introducing four pairs of dual variables. Then, solution of fundamental equations is converted into a symplectic eigenvalue problem. It is concluded that the influence of pressure on buckling solutions is more significant than that due to compressive load, in particular for a longer external pressured cylindrical shell. Besides, buckling loads and circumferential wavenumbers can be reduced greatly by relaxed in-plane axial constraints.
eISSN:2543-6309
ISSN:1429-2955