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Cone angle is 14 degrees
r2/t - 54.0 (r2 at the bottom)
Failure axial load, F= 230.0 kN
from Professor Jan Blachut, Mechanical Engineering, University of Liverpool, April 2012. More details are given in a forthcoming paper to appear in the Ocean Engineering Journal.
This and the following 26 slides are from various papers by Professor Jan Blachut and his colleagues. He and his colleague, Professor Gerard D. Galletly, devoted many years to shell buckling analyses and tests, producing many widely read papers with valuable information pertaining to appropriate design rules for elastic and elastic-plastic buckling of shells of various shapes and under various loadings: mainly external or internal uniform pressure.
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