P.15.13 A uniform thin-walled beam ABD of open cross-section (Fig. P.15.13) is simply supported at points B and D with its web vertical. It carries a downward vertical force W at the end A in the plane of the web. Derive expressions for the vertical and horizontal components of the deflection of the beam midway between the supports B and D. The wall thickness and Young's modulus E are constant throughout. Answer: = 0.186WP/Eat, v=0.177WP/Ea³t. 1 B 27 2a 2 2 13 C 4 a 0 5 02