Engineering Board Exam Reviewer · Strength of Materials · medium
A thin-walled spherical vessel with an inside diameter of 600 mm and a wall thickness of 8 mm is under an internal pressure of 1 MPa. What is the stress in the wall?
- 37.5
- 18.75
- 75
- 9.38
Answer
B. 18.75
Solution
For a thin-walled sphere, = pd/(4t) = (1)(600)/(4 × 8) = 18.75 MPa in every direction.
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