A long thin-wall steel (E = 200 GPa and v = 0.29) pressure vessel has a length of 9.00 m, an inside diameter of 100 mm, and a wall thickness of 2.00 mm. The ends of the vessel are reinforced hemispheres. The vessel is positioned between two rigid walls that touch each end of the vessel when the internal pressure is zero.
a. Detem1ine the internal pressure that will cause the vessel to buckle as a column. Assume that local buckling of the thin walls does not occur.
b. What is the average axial stress in the vessel when it buckles?
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