고체역학 (Beer) — Introduction—Concept of Stress: Problem 1.23

1.23 Link AB, of width b = 2 in. and thickness t = 1/4 in., is used to support the end of a horizontal beam. Knowing that the average normal stress in the link is -20 ksi and that the average shearing stress in each of the two pins is 12 ksi determine (a) the diameter d of the pins, (b) the average bearing stress in the link.