A Study on Buckling Behaviour of Steel Cylindrical Shell Structures with a Cut-out and Local Wall Thickness Reduction Subject to Axial Compression
Auteur(s): |
Lu Guo
Yukihiro Matsumoto Nguyen Long Seishi Yamada |
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Médium: | papier de conférence |
Langue(s): | anglais |
Conférence: | 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011 |
Publié dans: | IABSE-IASS 2011 London Symposium Report |
Année: | 2011 |
Abstrait: |
It is critical to understand the effect on buckling behaviour of cylindrical shell structure with cut-out and wall thickness reduction in safety design. This paper investigates buckling behaviour of a short steel cylindrical shell structure with a cut-out and local wall thickness reduction subject to axial compression using linear and non-linear finite element buckling analysis methods, including both geometrical and material non-linearity. Analysis results indicate that buckling capacity decreases to 10%-80% of non-cutout case. Buckling deformation occurs around cut-out and local wall reduction area, and buckling deformation shape is different to buckling mode that is observed. The cut-out and local wall thickness reduction can be considered as an initial imperfection in buckling analysis that is made clear from this study. |