Question

The box beam shown represents a hypothetical wing-rib. For rib C, calculate: (a) the shear flow in the webs adjacent to the vertical stiffeners ef, dc, and ab. (b) Determine the axial forces at points c and d slightly to the left and slightly to the right of the vertical stiffener cd.

30" ' E 2000 lb 800 lb 30 Front Upper ib spar, flange 7000 Ib Stiffener 1000 Ib 1000 lb 3000 lb 15. c/ 15- a Rear spar web Lower rib lange 1500 lb 1500 lb 2000 tb 10" 1000 tb 1515 5000 lb 2000 lb 6000 lb

Answer 1

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