고체역학 (Beer) — Analysis and Design of Beams for Bending: Problem 5.138

5.138 A transverse force P is applied as shown at end A of the conical taper AB. Denoting by \( d_0 \) the diameter of the taper at A, show that the maximum normal stress occurs at point H, which is contained in a transverse section of diameter \( d = 1.5 d_0 \).