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problem: find out the shear flow in each wall of the fuselage section below. The flange areas are 1 sq in and the web thicknesses are 0.05 in. The material has modulus E = 10 mpsi and G = 4 mpsi.

252_shear flow.jpg

problem: The tapered, two-cell beam is subjected to a pure torque of 50,000 in-lb counter clockwise. The length of the beam (normal to the figure) is 100 in. The flange areas are 1 sq in and all wall thicknesses are 0.01 in. G = 4 mpsi. Compute the shear flows at the wall (far end) and the total twist of the free end (near end).

1075_cell beam problem.jpg

problem: Look at the project assignment and complete the hand calculations. describe your strategy for optimization of your structure.

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