ii) Steel rails are laid at a temperature of 20°C. What should be the clearance between the rails if the maximum temperature expected is 55°C for no stress in the rails? If the actual clearance...

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ii) Steel rails are laid at a temperature of 20°C. What should be the clearance between the rails if the maximum temperature expected is 55°C for no stress in the rails? If the actual clearance provided is half this value, what will be the stress in the rails at the maximum temperature? Es = 200 GPa and αs = 12 × 10–6/°C

Answered 2 days AfterAug 11, 2022

Answer To: ii) Steel rails are laid at a temperature of 20°C. What should be the clearance between the rails if...

Jayaraj answered on Aug 13 2022
80 Votes
Given data:
Initial temperature T1 = 20°C
Final temperature T2 = 55°C
Youngs modulus Y = 200 Gpa

Thermal expansion = 12 × 10–6/°C
Find the clearance between the rail and stress when clearance reduced to half?
Solution:
As we know change in length of the steel rail is
L= L0 x x (T2-T1)...
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