A curved beam of a circular cross section of diameter d is fixed at one end and subjecte...

A curved beam of a circular cross section of diameter d is fixed at one end and subjected to a concentrated load P at the free end (Fig. P5.37). Calculate (a) the tangential stress at point A; (b) the tangential stress at point B. Given: P = 800 N, d = 20 mm, a = 25 mm, and b = 15 mm.