고체역학 (Beer) — Shearing Stresses in Beams: Problem 6.66

6.66 An extruded beam has the cross section shown. Determine (a) the location of the shear center O, (b) the distribution of the shearing stresses caused by the vertical shearing force V shown applied at O. [Given: \(V = 50\text{ kN}\), dimensions in mm: width \(70\text{ mm}\), height \(100\text{ mm}\), return height \(40\text{ mm}\), top/bottom flange thickness \(10\text{ mm}\), web and return thickness \(6\text{ mm}\)]