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

页码：705 / 716

页数：12

共 12 条

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