A mild steel specimen of 05 in diameter and a gage length of

A mild steel specimen of 0.5 in. diameter and a gage length of 2 in. was tested in tension. The test results are reported Table P3.13. Draw the stress-strain curve and calculate the following quantities: (a) the modulus of elasticity; (b) the proportional limit; (c) the yield stress at 0.05% offset; (d) the tangent modulus at a stress level of 50 ksi; (e) the secant modulus at a stress level of 50 ksi; (f) the plastic strain at a stress level of 50 ksi. (Use of a spreadsheet is recommended.)

Solution

The answer of following questions is as follows .

The tangent modulus is 76 kn/m

Thesecant modulus is 79kn/m