Question: (c) Table Q3(c) is the engineering stress-strain data that was obtained at the beginning of a tensile test for a steel specimen. (i) Plot
(c) Table Q3(c) is the engineering stress-strain data that was obtained at the beginning of a tensile test for a steel specimen. (i) Plot the engineering stress-strain curve for these data. [5 marks] (ii) Determine the 0.2 % offset yield strength for this steel, in MPa. [4 marks] (iii) Determine the Young's modulus of this steel, in GPa. [4 marks] (iv) List TWO (2) types of deformation of metals during a tensile test. [2 marks] Table Q3 (c): Engineering stress-strain data Engineering Strain Engineering Stress (MPa) (mm/mm) 0 0 15 0.0005 30 0.0010 40 0.0015 50 0.0020 63 0.0035 66 0.0040 70 0.0060 72 0.0080
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