QUESTION TWO $(20$ Marks$)$

The shown wing rib is connected only to $4$ booms, at points $\backslash (1,2,9\backslash ),$ and $10.$ The areas of both front spar caps $($booms $9$ and $10)$ are $\backslash (20\backslash$mathrm$\{$~cm$\}^\{2\}\backslash ),$ while the rear spar cap areas $($booms $1$ and $2)$ are $\backslash (10\backslash$mathrm$\{$~cm$\}^\{2\}\backslash ).$ Concentrated loads are applied only at point $7.$

a$.$ Find the shear flow around the periphery of the rib $(1-2,2-10,10,9,$ and $9-1).$

b$.$ Calculate the rib shear flows and axial loads in rib flanges at the TWO sections adjacent to spar $9-10$ and adjacent to stiffener $8-7$ ONLY.

Solution: