Post-buckling behavior of stiffened cylindrical shell and experimental validation under non-uniform external pressure and axial compression

被引：18

作者：

Wang, Bo ^{[1
,2
]}

Yang, Musen ^{[1
,2
]}

Zeng, Dujuan ^{[3
]}

Hao, Peng ^{[1
,2
]}

Li, Gang ^{[1
,2
]}

Liu, Ye ^{[1
,2
]}

Tian, Kuo ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Liaoning, Peoples R China

[2] Dalian Univ Technol, Dept Engn Mech, Key Lab Digital Twin Ind Equipment, Dalian 116023, Liaoning, Peoples R China

[3] Beijing Inst Astronaut Syst Engn, Beijing 100076, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2021年 / 161卷

基金：

中国国家自然科学基金;

关键词：

Stiffened cylindrical shell; Post-buckling behavior; Non-uniform external pressure; Mode jumping; High-precision loading system; DESIGN OPTIMIZATION; KNOCKDOWN FACTORS; BUCKLING ANALYSIS; COMPOSITE CYLINDERS; THICKNESS; FRAMEWORK; FAILURE;

D O I：

10.1016/j.tws.2021.107481

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

External pressure and axial compression are common load cases for stiffened cylindrical shells in underwater structures. Once these two load cases are combined, the buckling behavior will become quite complex, especially when the external pressure is non-uniform. In this study, the influence of external pressure combined with axial compression on the post-buckling behavior of stiffened cylindrical shell is investigated. Then, a high-precision measuring system and loading system for non-uniform external pressure and axial compression is designed and constructed, and the buckling experiment of 1-m-diameter stiffened cylindrical shell under non-uniform external pressure and axial compression is carried out. The numerical results show that the proportion of axial compression is a crucial factor for the mode jumping of cylindrical shell, and it is overly conservative to evaluate the loadbearing capacity of cylindrical stiffened shell by the uniform external pressure. The comparison of experimental and numerical results demonstrates the accuracy and effectiveness of the experimental system.

引用

页数：12

共 50 条

[31] Initial post-buckling behavior of thick rings under uniform external hydrostatic pressure - Closure
Fu, L
Waas, AM
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1996, 63 (02): : 560 - 560
[32] Experimental evidence of imperfection influence on the buckling of thin cylindrical shell under uniform external pressure
Lo Frano, R.
Forasassi, G.
NUCLEAR ENGINEERING AND DESIGN, 2009, 239 (02) : 193 - 200
[33] BUCKLING OF IMPERFECT STIFFENED CYLINDRICAL SHELLS UNDER AXIAL COMPRESSION
SINGER, J
ARBOCZ, J
BABCOCK, CD
AIAA JOURNAL, 1971, 9 (01) : 68 - &
[34] BUCKLING AND POSTBUCKLING OF STIFFENED CYLINDRICAL SHELLS UNDER AXIAL COMPRESSION
沈惠申
周频
陈铁云
Applied Mathematics and Mechanics(English Edition), 1991, (12) : 1195 - 1207
[35] Buckling of stiffened curved panels under uniform axial compression
Tran, K. L.
Douthe, C.
Sab, K.
Dallot, J.
Davaine, L.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2014, 103 : 140 - 147
[36] Buckling and post-buckling behavior of thin-walled cylindrical steel shells with varying thickness subjected to uniform external pressure
Aghajari, S.
Abedi, K.
Showkati, H.
THIN-WALLED STRUCTURES, 2006, 44 (08) : 904 - 909
[37] Post-buckling behaviour and strength of multi-stiffened aluminium panels under combined axial compression and lateral pressure
Khedmati, Mohammad Reza
Bayatfar, Abbas
Rigo, Philippe
MARINE STRUCTURES, 2010, 23 (01) : 39 - 66
[38] Buckling and post-buckling behavior of various dented cylindrical shells using CFRP strips subjected to uniform external pressure: Comparison of theoretical and experimental data
Maali, Mahyar
Kilic, Mahmut
Yaman, Zeynep
Agcakoca, Elif
Aydin, Abdulkadir Cuneyt
THIN-WALLED STRUCTURES, 2019, 137 : 29 - 39
[39] Buckling and post-buckling performance of aeronautic composite stiffened panel under compression
1600, Beijing University of Aeronautics and Astronautics (BUAA) (29):
[40] Optimal stabilization of the post-buckling path for cylindrical shells under external pressure
Krol, Mariusz
Kruzelecki, Jacek
Trybula, Daniel
ENGINEERING OPTIMIZATION, 2009, 41 (01) : 59 - 72

← 1 2 3 4 5 →