고체역학 (Gere) — Stresses in Beams (Basic Topics): Problem 5.8-6

5.8-6 A cantilever beam of length \(L = 2\text{ m}\) supports a load \(P = 8.0\text{ kN}\) (see figure). The beam is made of wood with cross-sectional dimensions \(120\text{ mm} \times 200\text{ mm}\). Calculate the shear stresses due to the load \(P\) at points located \(25\text{ mm}\), \(50\text{ mm}\), \(75\text{ mm}\), and \(100\text{ mm}\) from the top surface of the beam. From these results, plot a graph showing the distribution of shear stresses from top to bottom of the beam.