A 4m long steel bar of square cross section of 40mm side is heated through $75^oC$ with its ends clamped before heating. - i. If the clamps do not yield - ii. If the clamps yield by 0.6mm - Take E = 210GPa and $α = 11.5 × 10^-6/^oC$ -

Mumbai university > MECH > SEM 3 > Strength Of Materials

Marks: 10M

Year: June 2014

$$T = 75^oC \ \ \ \ \ \ L = 4m = 4000mm$$ $$B = 40mm \ \ \ \ A = 40^2 = 1600mm$$ $$E = 210GPa \ \ \ \ α = 11.5 × 10^-6/^oC $$

When there is an increase in the temperature, the bar expands …