Release Time:2019-03-13  Hits:

Indexed by: Journal Article

Date of Publication: 2016-01-01

Journal: JOURNAL OF THEORETICAL AND APPLIED MECHANICS

Included Journals: EI、SCIE

Volume: 54

Issue: 3

Page Number: 705-716

ISSN: 1429-2955

Key Words: buckling mode; combined loads; critical load; cylindrical shell; symplectic method

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.