Answered: Assuming a welded rail line, 1km long,…

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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Transcribed Image Text:Assuming a welded rail line, 1km long, that is unconstrained except at the ends. The rail has a cross sectional profile as given. If the rail was installed at a temperature of 20°C, at what temperature would the rail buckle? How much pre-stress would need to be applied to the rail in order to prevent buckling up to a maximum operating temperature of 40°C? Rail profile 46E1 Equivalent profile name SBBI Section weight kg/m 46.17 Rail height mm (H) 145.00 X Y Y Head width mm (C) 65.00 A H Web thickness mm (A) 14.00 Foot width mm (P) 125.00 Moment of inertia, Ixx cm* 1641.10 Moment of inertia, lyy cm* 298.20

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