The 40 ft long steel rails on a train track are laid with a small gap between them to allow for thermal expansion. The cross sectional area of steel rail is 6.0 in^2. Use a = 6.60x10^6 in / (inF)
The 40 ft long steel rails on a train track are laid with a small gap between them to allow for thermal expansion. The cross sectional area of steel rail is 6.0 in^2. Use a = 6.60x10^6 in / (inF)
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
Determine the required gap (δ) so that the rails just touch one another when the temperature is increased from Ti = -20F and Tf = 100F
Determine the stress in steel rails if the gap is δ = 0.5 in and the temperature is increased from Ti = -20F to Tf = 120F.
NOTE: indicate the free body diagram.
Transcribed Image Text:The 40 ft long steel rails on a train track are laid with a small gap between them
to allow for thermal expansion. The cross sectional area of steel rail is 6.0 in^2.
Use a = 6.60x10*6 in / (inF)
- 8
40 ft
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