a. A steel tie bar in a structure is initially 2 m long and 25 mm diameter. What will be the change in length and diameter when carrying a tensile load of 100 kN? The modulus of elasticity is 200 GPa and Poisson ' s ratio is 0.33.
b. A steel bar is initially 250 mm in length with a square cross-section of 50 50 mm. The modulus of elasticity is 200 GPa and Poisson ' s ratio is 0.32. Determine the change in the dimensions of the bar when carrying a tensile load of 600 kN