Question: A steel alloy specimen having a rectangular cross section of dimensions 12.7 mm ? 6.4 mm (0.5 in. ? 0.25 in.) has the stress?strain behavior

A steel alloy specimen having a rectangular cross section of dimensions 12.7 mm ? 6.4 mm (0.5 in. ? 0.25 in.) has the stress?strain behavior shown in figure. If this specimen is subjected to a tensile force of 38,000 N (8540lb_f) then

(a) Determine the elastic and plastic strain values.

(b) If its original length is 460 mm (18.0 in.), what will be its final length after the load in part (a) is applied and then released?

300 2000 10 psi 300 MPa 2000 200 200 1000 1000 100

300 2000 10 psi 300 MPa 2000 200 200 1000 1000 100 100 0.000 0.005 0.010 0.015 Strain 0.000 0.020 0.040 Strain 0.060 0.080 Stress (MPa) Stress (sd 01) ss

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