|Table of Contents|

Citation:
　Yueyang Wang,Jian Zhang,Wenxian Tang.Buckling Performances of Spherical Caps Under Uniform External Pressure[J].Journal of Marine Science and Application,2020,(1):96-100.[doi:10.1007/s11804-020-00125-7]
Click and Copy

Buckling Performances of Spherical Caps Under Uniform External Pressure

Info

Title:
Buckling Performances of Spherical Caps Under Uniform External Pressure
Author(s):
Yueyang Wang1;  Jian Zhang1;  Wenxian Tang1; 2
Affilations:
Author(s):
Yueyang Wang1;  Jian Zhang1;  Wenxian Tang1; 2
1 School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
2 Jiangsu Provincial Key Laboratory of Advanced Manufacture and Process for Marine Mechanical Equipment, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Keywords:
Spherical cap; Stainless steel; Buckling; External pressure; Bifurcation buckling; Critical buckling
分类号:
-
DOI:
10.1007/s11804-020-00125-7
Abstract:
This study aims to experimentally and numerically examine the buckling performances of stainless steel spherical caps under uniform external pressure. Three laboratory-scale caps were fabricated, measured, and tested. The buckling behaviors of these caps were investigated through experiments and three numerical methods, namely, nonlinear Riks algorithm, nonlinear bifurcation, and linear elastic analysis. The buckling of equal-radius caps was numerically analyzed with different methods to identify their applicability under different wall thicknesses. The results obtained from the nonlinear Riks algorithm are in good agreement with the experimental results, which means the nonlinear Riks algorithm can accurately predict the buckling performances of spherical caps, including the magnitude of critical buckling loads and the deformation of post-buckling modes. The nonlinear bifurcation algorithm is only suitable for predicting the buckling loads of ultra-thin or large-span caps, and the linear buckling method is inappropriate for predicting the buckling of metal spherical caps.

References:

ASTM International (2003) ASTM D638-14:standard test method for tensile properties of plastics. ASTM International, West Conshohocken
B?achut J (2009) Buckling of multilayered metal domes. Thin-Walled Struct 47:1429-1438. https://doi.org/10.1016/j.tws.2009.07.011
B?achut J (2014) Externally pressurized toricones-buckling tests. Shell structures-theory and applications, vol. 3, CRC-Press Taylor & Francis, Boca Raton, 183-186
B?achut J (2015) Locally flattened or dented domes under external pressure. Thin-Walled Struct 97:44-52. https://doi.org/10.1016/j.tws.2015.08.022
B?achut J (2016a) Buckling of composite domes with localised imperfections and subjected to external pressure. Compos Struct 153:746-754. https://doi.org/10.1016/j.compstruct.2016.07.007
B?achut J (2016b) Buckling of externally pressurized steel toriconical shells. Int J Press Vessel Pip 144:25-34. https://doi.org/10.1016/j.ijpvp.2016.05.002
B?achut J, Galletly GD (1990) Buckling strength of imperfect spherical caps-some remarks. AIAA J 28(7):1317-1319. https://doi.org/10.2514/3.25214
B?achut J, Galletly GD (1995) Buckling strength of imperfect steel hemispheres. Thin-Walled Struct 23:1-20. https://doi.org/10.1016/0263-8231(95)00001-T
B?achut J, Galletly GD, Moreton DN (1990) Buckling of near-perfect steel torispherical and hemispherical shells subjected to external pressure. AIAA J 28(11):1971-1975. https://doi.org/10.2514/3.10506
Findlay GE, Timmins W (1984) Toriconical heads:a parametric study of elastic stresses and implications on design. Int J Press Vessel Pip 15(3):213-227. https://doi.org/10.1016/0308-0161(84)90058-9
Galletly GD, Kruzelecki J, Moffat DG, Warrington B (1987) Buckling of shallow torispherical domes subjected to external pressure-a comparison of experiment, theory, and design codes. J Strain Anal Eng Des 22(3):163-175. https://doi.org/10.1243/03093247V223163
Gerasimidis S, Virot E, Hutchinson JW, Rubinstein SM (2018) On establishing buckling knockdowns for imperfection-sensitive shell structures. J Appl Mech 85:091010-1-091010-14. https://doi.org/10.1115/1.4040455
Ifayefunmi O (2016) Buckling behavior of axially compressed cylindrical shells:comparison of theoretical and experimental data. ThinWalled Struct 98:558-564. https://doi.org/10.1016/j.tws.2015.10.027
Jasion P, Magnucki K (2015a) Elastic buckling of Cassini ovaloidal shells under external pressure-theoretical study. Archives of Mechanics 67(2):179-192
Jasion P, Magnucki K (2015b) Stability of an ellipsoidal head with a central nozzle under axial load. Arch Civ Eng 61(2):89-98. https://doi.org/10.1515/ace-2015-0016
Krivoshapko SN (2007) Research on general and axisymmetric ellipsoidal shells used as domes, pressure vessels, and tanks. Appl Mech Rev 60(6):336-355. https://doi.org/10.1115/1.2806278
Lee A, Marthelot J, Hutchinson JW, Reis PM (2016) The geometric role of precisely engineered imperfections on the critical buckling load of spherical elastic shells. J Appl Mech 83:111005-1-111005-11.https://doi.org/10.1115/1.4034431
López Jiménez F, Marthelot J, Lee A, Hutchinson JW, Reis PM (2017) Technical brief:knockdown factor for the buckling of spherical shells containing large-amplitude geometric defects. J Appl Mech 84:034501-1-034501-4. https://doi.org/10.1115/1.4035665
Magnucki K, Jasion P, Rodak M (2018) Strength and buckling of an untypical dished head of a cylindrical pressure vessel. Int J Press Vessel Pip 161:17-21
Tripathi SM, Anup S, Muthukumar R (2016) Effect of geometrical parameters on mode shape and critical buckling load of dished shells under external pressure. Thin-Walled Struct 106:218-227. https://doi.org/10.1016/j.tws.2016.02.011
Wagner HNR, Hühne C, Niemann S (2018) Robust knockdown factors for the design of spherical shells under external pressure:development and validation. Int J Mech Sci 141:58-77. https://doi.org/10.1016/j.ijmecsci.2018.03.029
Wang YY, Tang WX, Zhang J, Zhang S, Chen Y (2019) Buckling of imperfect spherical caps with fixed boundary under uniform external pressure. Mar Struct 65:1-11. https://doi.org/10.1016/j.marstruc.2019.01.004
Warrington B (1984) The buckling of torispherical shells under external pressure. PhD thesis, The University of Liverpool, Liverpool.
DOI:https://doi.org/10.1016/j.ijpvp.2018.02.003
Zhang J, Zhu BY, Wang F, Tang WX, Wang WB, Zhang M (2017a) Buckling of prolate egg-shaped domes under hydrostatic external pressure. Thin-Walled Struct 119:296-303. https://doi.org/10.1016/j.tws.2017.06.022
Zhang M, Tang WX, Wang F, Zhang J, Cui WC, Chen Y (2017b) Buckling of bi-segment spherical shells under hydrostatic external pressure. Thin-Walled Struct 120:1-8. https://doi.org/10.1016/j.tws.2017.08.017
Zhang J, Wang YY, Wang F, Tang WX (2018) Buckling of stainless steel spherical caps subjected to uniform external pressure. Ships Offshore Struc 13(7):779-785. https://doi.org/10.1080/17445302.2018.1459358
Zhang J, Wang YY, Tang WX, Zhu YM, Zhao XL (2019) Buckling of externally pressurised spherical caps with wall-thickness reduction. Thin-Walled Struct 136:129-137. https://doi.org/10.1016/j.tws.2018.12.005

Memo

Memo:
Received date:2019-02-28;Accepted date:2019-06-03。
Foundation item:This study is supported by the National Natural Science Foundation of China (No. 51709132), Natural Science Foundation of Jiangsu Province (No. BK20150469), and Jiangsu Provincial Government Scholarship Programme.
Corresponding author:Jian Zhang,zhjian127@just.edu.cn
Last Update: 2020-07-24