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This and the next slide are from: Professor Arkadiy Isaakovich Manevich, Computational Mechanics and Strength of Structures, Department of the Dniepropetrovsk , National University, Ukraine
This slide shows the buckled shell for which there was no internal pressure. The next slide shows the buckled shell for which there was stabilizing internal pressure.
See the papers:
1. An experimental investigation of buckling of longitudinally stiffened cylindrical shells under axial compression. In.: "Rashchiot prostranstvennykh konstrukcij" (“Design of Spatial Structures”), v. 14, Moscow, Stroyizdat, 1971 (in Russian, co-authors Demeshko M. F., Krasovsky V.L., Kucherenko V. M.).
2. The influence of internal pressure on buckling of eccentrically stiffened cylindrical shells under axial compression. In.: "Rashchiot prostranstvennykh konstrukcij" (“Design of Spatial Structures”), v. 15, Moscow, Stroyizdat, 1973 (in Russian, co-authors Krasovsky V.L., Kucherenko V. M.).
3. Coupled modes of buckling of a longitudinally stiffened cylindrical shell. In: "Hydroaeromechanics and Theory of elasticity", v. 22. Dniepropetrovsk, DGU, 1977 (in Russian).
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