This paper focuses on the buckling of nontypical ellipsoidal domes under uniform external pressure. According to the strength and stiffness optimisation theory, the structure of the ellipsoidal dome was optimised respectively, and two meridional profiling curves of the ellipsoidal dome were obtained. Two mass-equivalent ellipsoidal domes with variable wall thickness and one mass-equivalent ellipsoidal dome with constant wall thickness were fabricated using CNC machining, with a nominal long-axis and short-axis radius of 100 and 75 mm, respectively. The geometry, wall thickness, and buckling load of each ellipsoidal dome were measured. The agreement between numerical predictions and experimental results is good. The results indicate that the ellipsoidal dome with variable wall thickness has a relatively large load-carrying capacity.
Buckling of externally pressurised ellipsoidal domes with variable wall thicknesses
SHIPS AND OFFSHORE STRUCTURES
Y. ZHU ET AL.
Ships and Offshore Structures ; 19 , 5 ; 644-653
2024-05-03
10 pages
Article (Journal)
Electronic Resource
English
Buckling characteristics of externally pressurised toroidal shell
Taylor & Francis Verlag | 2020
|Elastic–plastic buckling of externally pressurised hemispherical heads
Taylor & Francis Verlag | 2019
|Frame Tripping in Ring Stiffened Externally Pressurised Cylinders
British Library Online Contents | 1996
|Comparison of design criteria for externally pressurised vessels
Tema Archive | 2009
|Vibration of hemi-ellipsoidal axisymmetric domes submerged in water
Tema Archive | 1986
|