Student name:adent name:

The beam shown below has a box cross sectional area. Determine the maximum

bending moment stress that occurs in the beam. $(30$ points$)$

Note:

Moment Inertia of a box Section:

$I_{}=\frac{B{D}^3}{12}-\frac{b{d}^3}{12}$

The beam shown below has a rectangular cross section. Determine the maximum bending stress that occur in the beam. $(40$ points$)$