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In a thin cylinder vessel, how does the presence of torque affect the distribution of stress compared to when only internal fluid pressure is applied?

65. In a thin cylinder vessel, how does the presence of torque affect the distribution of stress compared to when only internal fluid pressure is applied?

1. Torque decreases hoop stress
2. Torque decreases radial stress uniformly
3. Torque induces additional hoop stress
4. Torque increases radial stress uniformly

Answer

The correct answer is: C) Torque induces additional hoop stress

Explanation

Torque induces additional hoop stress in the thin cylinder vessel while the internal fluid pressure primarily induces radial stress. Therefore, the presence of torque alters the stress distribution by introducing torsional stress in addition to radial stress.