고체역학 (Beer) — Shearing Stresses in Beams: Problem 6.69

6.69 through 6.74 Determine the location of the shear center O of a thin-walled beam of uniform thickness having the cross section shown. [Figure P6.69 Description: A thin-walled cross-section with five nodes labeled A, B, D, E, F. - Node A is at the top right tip. - Segment AB is vertical with a height of 2 in. - Segment BD is sloped, connecting B to the leftmost node D. Its vertical projection is 3 in. - Segment DE is sloped, connecting D to E. Its vertical projection is 3 in. - Segment EF is vertical with a height of 2 in. - The total horizontal distance from node D to the vertical line containing nodes A, B, E, F is 4 in. - The thickness of the material is \(t = \frac{1}{4}\) in.]