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Homework Statement
The 40 ft long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the required gap in inches so that the rails just touch one another when the temperature is increased from -20 F to 90 F. The cross sectional area of each rail is 5.10 in2.
So i was able to find out the deformation on the rail. My question is, does the .34848in get split between both ends of the rail since both sides are free ends? So each side would expand .17424in?
Homework Equations
δ=αΔTL[/B]
The Attempt at a Solution
δ=αΔTL= .34848 in[/B]