Question p.23.5: The idealized cross-section of a two-cell thin-walled wing b...
The idealized cross-section of a two-cell thin-walled wing box is shown in Fig. P.23.5. If the wing box supports a load of 44 500 N acting along the web 25, calculate the shear flow distribution. The shear modulus G is the same for all walls of the wing box.
\begin{array}{llllc}\hline \text { Wall } & \text { Length }(\mathrm{mm}) & \text { Thickness }(\mathrm{mm}) & \text { Boom } & \text { Area }\left(\mathrm{mm}^2\right) \\\hline 16 & 254 & 1.625 & 1,6 & 1290 \\25 & 406 & 2.032 & 2,5 & 1936 \\34 & 202 & 1.220 & 3,4 & 645 \\12,56 & 647 & 0.915 & & \\23,45 & 775 & 0.559 & & \\\text { Cell areas: } A_{\mathrm{I}}=232000 \mathrm{~mm}^2, A_{\mathrm{II}}=258000 \mathrm{~mm}^2 & & \\\hline\end{array}
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