고체역학 (Gere) — Stresses in Beams (Advanced Topics): Problem 6.4-11

6.4-11 A cantilever beam with a wide-flange cross section and length \( L \) supports an inclined load \( P \) at its free end (see figure). Determine the orientation of the neutral axis and calculate the maximum tensile stress \( \sigma_{\text{max}} \) due to the load \( P \). Data for the beam are HE 650B section, \( L = 2.5 \text{ m} \), \( P = 16.7 \text{ kN} \), and \( \alpha = 55^\circ \). Note: See Table F-1 of Appendix F for the dimensions and properties of the beam.