A steel ring of internal radius 499.8 mm is to be shrink-fitat normal (room) temperature over a rigid cylinder of radium r =500 mm
a) How much must the temperature of the ring be increased above normal for this to occur?
b) Determine the stress in the ring when the temperaturereturns to normal.
Given: E=210 GPa, α=12(10^-6) deg. Celcius