The wall thickness of thin cylindrical shell with hemispherical ends is ______________ that of the spherical ends?
Correct answer: B. More than
- A. Equal to
- B. More than
- C. Less than
- D. Either B. or C.; depends on maximum permissible internal pressure
Explanation
For the same diameter, pressure and allowable stress, a cylindrical shell needs t = pD/(2σ), whereas a spherical shell needs t = pD/(4σ). Thus the cylindrical portion is twice as thick as the hemispherical ends.
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