The force produces deflection in both the portions of steel. Total deflection will be sum of inividual deflections. The deflection is given by: x=(F*L)/(A*E) x=x1+x2 The total deflection is 3.183 mm Stress=Force/Area The tensile stress at larger cross section area is 25.46 MPa The tensile stress at smaller cross section area is 101.86 MPa