One of the most common uses of the torsion test, is to determine the material of rods and bars especially circular cross-section bars. Your manager assigned you a job is to recognize the material of a circular bar with diameter of 17.5 mm and length of 205 mm from experimental data of angle of twist obtained from a torsion test. The material could be either Aluminium Alloy 1060 with a Modulus of Rigidity range of 20