고체역학 (Gere) — Applications of Plane Stress: Problem 8.3-4

8.3-4 A tall standpipe with an open top (see figure) has diameter \( d = 2.2 \text{ m} \) and wall thickness \( t = 20 \text{ mm} \). (a) What height \( h \) of water will produce a circumferential stress of \( 12 \text{ MPa} \) in the wall of the standpipe? (b) What is the axial stress in the wall of the tank due to the water pressure?