nital line modulus us of elastidty is 400 CPa The stressstra

nital line (modulus us of elastidty) is 400 CPa. The stress-strain diap agram shown in the ld stress of the stress- xally unt it elongates 10.0 mm, and then the load is removed. How does the final length of the bar compare with Its original length? Round to 1 dedmal place (MPa) U.IU3 Final length of bar is Dm greater than its original length.

Solution

Strain=0.01/5=0.002

As strain is beyond the yield region, the elongation will not come back. Whatever the elongation occured will remain. Hence the elongation is 0.01 m.

Final length=5+0.01 = 5.01 m