(Solved): PROBLEM 1. The box beam of the aircraft wing in the figure is made of four boards glued togethe ...

PROBLEM 1. The box beam of the aircraft wing in the figure is made of four boards glued together. The thickness of the lower and upper boards is $$5\mathrm{mm}$$, and the thickness of the side boards is $$10\mathrm{mm}$$. The distributed load on the wing is represented by linearly varying distributed loads. Calculate the maximum shear stress that the adhesive must withstand.