4. Steel railroad rails 10m long are laid with end-toend clearance of 3mm at a temperature of 15 degrees Celsius. (a) At what temperature will the rails just come in contact? (b) What stress would be induced in the rails at that temperature if there were no initial clearance? Use a = 11.70 x 10* °C1 and E = 200GP..
4. Steel railroad rails 10m long are laid with end-toend clearance of 3mm at a temperature of 15 degrees Celsius. (a) At what temperature will the rails just come in contact? (b) What stress would be induced in the rails at that temperature if there were no initial clearance? Use a = 11.70 x 10* °C1 and E = 200GP..
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Transcribed Image Text:4. Steel railroad rails 10m long are laid with end-to-end clearance of 3mm at a
temperature of 15 degrees Celsius. (a) At what temperature will the rails just come
in contact? (b) What stress would be induced in the rails at that temperature if there
were no initial clearance? Use a = 11.70 x 10ª °C1 and E = 200GPA.
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