고체역학 (Gere) — Applications of Plane Stress: Problem 8.4-20

8.4-20 A cantilever beam with a T-section is loaded by an inclined force of magnitude 6.5 kN (see figure). The line of action of the force is inclined at an angle of 60° to the horizontal and intersects the top of the beam at the end cross section. The beam is 2.5 m long and the cross section has the dimensions shown. Determine the principal stresses \(\sigma_1\) and \(\sigma_2\) and the maximum shear stress \(\tau_{max}\) at points A and B in the web of the beam near the support.