Question: 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

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

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