The stressstrain diagram OABC for a steel alloy having an or

The stress-strain diagram (OABC) for a steel alloy having an original diameter of 0.5 in. and a gauge length of 2 in. is given in the figure (see Fig. 5.0). OA\'D is a magnification of the initial portion of the diagram with its scale shown in blue. Determine approximately modulus of elasticity, E. 29167 ksi 30000 ksi 31667 ksi 33333 ksi

Solution

E / 1 = (960ksi - 0) / (0.002-0) = 30000 ksi