Determine the stress in steel rod, Mechanical Engineering

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A steel rod of 3 cm diameters and 5 m long is connected to two grips and the rod is maintained pull exerted when the temperature falls to 30oC if

(a) The ends do not yield, and

(b) The ends yield by 0.12 cm

Take E = 2 x 105 MN/m2 α = 12 x 10 -6/oC


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