Q$1$: Determine how large the load P e is when incipient plasticity occurs somewhere in the beam andindicate where in the beam this occurs. It happens when the largest moment somewhere in the beam amounts to Me$.$

Q$2$: determine the maximum shear stress in the beam.

Q$3$: Determine the load P s when the bearing capacity of the beam is fully utilized. What is the ratio between P s

when the beam collapses and P e at incipient plasticization.

$\backslash$sigma s $=230$ MPa

and the E modulus is $210$ GPa.