Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.085416666666667
0.12638888888889
0.042361111111111
0.084027777777778

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Machine Design
In order to determine the stresses in a thin cylinder due to an internal pressure, it is assumed that

The effect of curvature of the cylinder wall is neglected
All of these
The effect of the restraining action of the heads at the end of the pressure vessel is neglected
The tensile stresses are uniformly distributed over the section of the walls

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