Compute the true stress and the logarithmic strain using the data of Prob 29 and plot the results on log log paper Then find the plastic strength coefficient 0 and the strain strengthening exponent m Find also the yield strength and the ultimate strength after the specimen has had 20 percent cold w...

To plot true VS 8 the following equations are applied to the data 0503 01987 in 4 Eq 24 Eq 214 Ao Eq ...

Compute the true stress and the logarithmic strain using the data of Prob. 29 and plot the

Question:

Compute the true stress and the logarithmic strain using the data of Prob. 2–9 and plot the results on log-log paper. Then find the plastic strength coefficient σ0 and the strain-strengthening exponent m. Find also the yield strength and the ultimate strength after the specimen has had 20 percent cold work