The screw clamp shown in the figure applies a P = 500 N pressing force to the wooden blocks between the jaws. It case; a) Calculate the greatest tensile and compressive stresses occurring in the...

The screw clamp shown in the figure applies a P = 500 N pressing force to the wooden blocks between the jaws. It case;

a) Calculate the greatest tensile and compressive stresses occurring in the section a-a shown in the figure,

b) show (draw) the distribution of normal stresses along the section height,

c) Clamp material tensile safe tension em. = 50MPa and compressive strength em = 80MPa, then a-a What is the maximum compressive load (P) that can be applied without damaging the cross-section?