The deformable beam $AD$ shown in Figure $3$ is supported by the wall at A and the rod $CE($length

$=15m$ at $C.$ The beam is subjected to a uniformly distributed load of $4k\frac{N}{m}$ between A and $B.$

The rectangular cross section $($width $=200mm$; height $=500mm)$ of the beam and the circular

cross section $($diameter $=100mm)$ of the rod are also shown in Figure $3.$ The beam $AD$ has a

modulus of elasticity $E_{\text{b}\text{e}\text{a}\text{m}}=150$GPa and the rod $CE$ has $E_{\text{r}\text{o}\text{d}}=200$GPa.

i$)$ Determine the stress in the rod $CE$; Is the rod under tension or compression?

ii$)$ Draw the shear and bending moment diagrams for the beam $AD.$

iii$)$ Find the maximum tensile and compressive bending stresses in the beam $AD.$

Fig. $3$ Schematics of the beam structure. Cantilevered Beam Slopes and Deflections