Halliday, Resnick & Walker — Equilibrium and Elasticity: Problem Problem_48

Figure 12.45 shows the stress versus strain plot for an aluminum wire that is stretched by a machine pulling in opposite directions at the two ends of the wire. The scale of the stress axis is set by \(s = 7.0\), in units of \(10^7 \text{ N/m}^2\). The wire has an initial length of \(0.800 \text{ m}\) and an initial cross-sectional area of \(2.00 \times 10^{-6} \text{ m}^2\). How much work does the force from the machine do on the wire to produce a strain of \(1.00 \times 10^{-3}\)?