고체역학 (Beer) — Pure Bending: Problem 4.176

4.175 The split ring shown has an inner radius \( r_1 = 0.8 \text{ in.} \) and a circular cross section of diameter \( d = 0.6 \text{ in.} \) Knowing that each of the 120-lb forces is applied at the centroid of the cross section, determine the stress (a) at point A, (b) at point B. 4.176 Solve Prob. 4.175, assuming that the ring has an inner radius \( r_1 = 0.6 \text{ in.} \) and a cross-sectional diameter \( d = 0.8 \text{ in.} \)