COMBINED LOAD BUCKLING FOR CYLINDRICAL SHELLS BASED ON A SYMPLECTIC ELASTICITY APPROACH

被引：3
|
作者：
Sun, Jiabin [1 ,2 ]
Xu, Xinsheng [3 ,4 ]
Lim, C. W. [5 ]
机构：
[1] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Panjin, Peoples R China
[2] Dalian Univ Technol, Sch Ocean Sci & Technol, Panjin, Peoples R China
[3] Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
[4] Dalian Univ Technol, Dept Engn Mech, Dalian, Peoples R China
[5] City Univ Hong Kong, Dept Civil & Architectural Engn, Hong Kong, Hong Kong, Peoples R China
来源：
JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2016年 / 54卷 / 03期
基金：
中国国家自然科学基金;
关键词：
buckling mode; combined loads; critical load; cylindrical shell; symplectic method; COMBINED AXIAL-COMPRESSION; EXTERNAL-PRESSURE; SYSTEM; THICK;
D O I：
10.15632/jtam-pl.54.3.705
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
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.
引用
收藏
页码：705 / 716
页数：12
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