The total tensile load of 160kN of steel is to be stress at the middle portion limited to 150 N/mm2, find the diameter of the middle portion and also the length of the middle portion of the total elongation of the rod is to be 0.2mm. consider the young modulus of steel. As a civil engineer, you have been consulted to design and advice on how the structure should be constructed to withstand the load. The middle section of the beam should be taken note of during the analysis