고체역학 (Beer) — Shearing Stresses in Beams: Problem 6.47

6.47 A plate of \(\frac{1}{4}\)-in. thickness is corrugated as shown and then used as a beam. For a vertical shear of 1.2 kips, determine (a) the maximum shearing stress in the section, (b) the shearing stress at point B. Also sketch the shear flow in the cross section.