A steel rod of length `6.0 m` and diameter `20 mm` is fixed between two rigid supports . Determine the stress in the rod, when the temperature increases by `80^@`C if
(a)the ends do not yield (b) the ends yield by 1mm
Take `Y=2.0xx10^(6) kg//cm^(2)`and`alpha=12xx10^(-6) per ^@C.`

A steel rod of length 6.0 m and diameter 20 mm is fixed between two rigid supports. Determine the stress in the rod, when the temperature increased by 80^(@)C if ends do not yield. Take Y=2.0xx10^(5)kg//cm^(2) and alpha=12xx10^(-6)"per ".^(@)C .

A rod of steel is 5m long and 3cm diameter at a tempearatyre if 20^(@)C . Find the free expansion of the rod when the temperature us raused ti 65^(@)C . Find the respective pulls exerted if (i) the ends do not yield and (ii) the ends yield by 0.12 cm. Y = 2 xx 10^(5) MN // m^(2) and alpha = 12 xx 10^(6) per ^(@)C

A steel rod of length 5m is fixed rigidly between two supports. a of steel = 12xx10^(-6)//""^(@)C,Y=2xx10^(11)Nm^(-2) . With the increase in its temperature by 40^(@)C , the stress developed in the rod is

A rod of aluminium is fixed between two rigid support. If the temperature of rod is increased by 10°C , then the thermal stress on the rod is (Take Y= 7×10^10 Pa and alpha =2.4* 10^-5 K^-1 )

A rod of aluminium is fixed between two rigid support. If the temperature of rod is increased by 10°C , then the thermal stress on the rod is (Take Y= 7×10^10 Pa and alpha =2.4* 10^-5 K^-1 )