A rail line is laid so that there is no stress in rails at 15°C. The rails are 500000 mm long. α = 11.7 × 10-6/°C and E = 2.3 × 105 N/mm2. Find the maximum temp. to have no stress in the rails if the expansion allowance is 15 mm/rail.

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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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A rail line is laid so that there is no stress in rails at 15°C. The rails are 500000 mm long. α = 11.7 × 10^-6/°C and E = 2.3 × 10⁵N/mm². Find the maximum temp. to have no stress in the rails if the expansion allowance is 15 mm/rail.

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