do -Lo o (ksi) O = e 100 90 80- --o =f 70- 60- 50 40- 30 20 10 E (in./in.) .02.04 .06 .08.10 .12.14 .16.18 .20 .22 .24 E = h
A tension test is being conducted on a steel-rod specimen with a gauge length of L0=2 in and initial diameter of d0=0.5 in. Data were collected to form the conventional stress-strain diagram as shown. From the diagram, f = 74.0 ksi, e = 104.0 ksi , g = 85.0 ksi , and h = 0.15 in/in.
Assuming that the strain remains constant throughout the region between the gauge points, determine the nominal strain ε experienced by the rod if it is elongated to L = 2.7 in .
Assuming that the stress is constant over the cross-sectional area and if the tension force used is P = 11.0 kips, find the nominal stress experienced by the rod.
Determine the force P needed to reach the ultimate stress in the steel-rod specimen.
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