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P.10.13 A portion of a tapered, three-cell wing has singly symmetrical idealized cross-sections 1000mm apart as shown in Fig. P.10.13. A bending moment Mx = 1800 N m and a shear load Sy = 12 000 N in the plane of the web 52 are applied at the larger cross-section. Calculate the forces in the booms and the shear flow distribution at this cross-section. The modulus G is constant throughout. Section dimensions at the larger cross-section are given below.

Wall

Length (mm)

Thickness (mm)

Boom

Area (mm2)

Cell

Area (mm2)

12, 56

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