a) Calculate the value of the maximum normal stress ( \( \sigma-\mathrm{MPa} \) ) in the \( \mathrm{d}-\mathrm{d} \) section? ( 15 p ) b) For the section \( d-d \), draw the change of normal stress by writing its values along the section. (5 p) c) Calculate the value of the maximum shear stress ( \( \tau \) MPa ) due to the shear force in the d -d section. (10 p) d) For the section \( d-d \), plot the change in shear stress \( \mathrm{T}(\mathrm{MPa}) \) along the section by writing its values ( 8 p ). Also, write the value of the shear stress \( t(\mathrm{MPa}) \) in MPa for the point indicated by \( U \) on the \( d-d \) section. (2 p) e) Calculate the principal stresses (max, min) and the op angle value at which they occur for the plane stress state, taking into account the maximum normal stress and maximum shear stress values in the beam. (You can use either the analytical or Mohr Circle approach. Detailed solution is mandatory for points.) (20 p) CALCULATIONS THAT MUST BE ON THE ANSWER SHEET IN ORDER TO RECEIVE POINTS FOR THIS QUESTION. * The free body diagram of the system will be drawn. (COMPULSORY) Shear force and moment diagrams will be drawn. (COMPULSORY) * Neutral axis of the section and moment of inertia calculation to be done. (MANDATORY) * In the calculation of the shear force, the first area moment value Q will be calculated. (ZOI
