Shows a plot of the natural log of the true stress versus the natural log of the true strain for a Cu-30% Zn sample tested in tension. Only the plastic portion of the stress-strain curve is shown. Determine the strength coefficient K and the work-hardening exponent n?

In (True strain)
Figure 8 - 24 The natural log of the true stress versus the natural log of the true strain for a Cu-30% Zn sample tested in tension. Only the plastic portion of the stress-strain curve is shown?

Transcribed Image Text:

20 19 18 17 16 -2.5 2.0 1.5 1.00.5 0.0