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On the mechanism of buckling of a circular cylindrical shell under axial compressionThe present paper deals with the buckling of a circular cylindrical shell under axial compression from the viewpoint of energy and the characteristics of deformation. It is shown first, both theoretically and experimentally, that the reason why the buckling of a cylindrical shell is quite different from that of a flat plate is attributable to the existence of a nearly developable surface far apart from the original cylindrical surface. Based upon this result, the experimental fact that the buckling is really not general but local, that is, that the buckled region is limited axially to a range of 1.5 times the wave length of the lobe, is explained by the theoretical result that the minimum buckling load is smaller in the local buckling than in the general buckling case. The occurrence of local buckling is affirmed also from the viewpoint of the energy barrier to be jumped over during buckling, and from a comparison of the theoretical post-buckling state with the experimental results. Finally, the local buckling with the load applied by a spring is analyzed, and it is proved that the minimum buckling load increased with an increase of rigidity of the spring.
Document ID
19930093840
Document Type
Other
Authors
Yoshimura, Yoshimaru (University of Tokyo)
Date Acquired
August 16, 2013
Publication Date
July 1, 1955
Report/Patent Number
NACA-TM-1390
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
SHELLS, STRUCTURAL
CYLINDERS, STRUCTURAL - CIRCULAR
CYLINDERS

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