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A bar of a steel alloy that exhibits the stress-strain behavior shown in the Animated Figure 6.22 is subjected to a tensile load; the specimen is 375 mm (14.8 in.)

long and has a square cross section 5.5 mm (0.22 in.) on a side. (a) Compute the magnitude of the load necessary to produce an elongation of 0.525 mm (0.021 in.). (b) What wilI be the deformation after the load has been released?

Fig: 1

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