Determine the stress in the copper and in the steel when the temperature of the
Determine the stress in the copper and in the steel when the temperature of the
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
A compound bar is formed from copper rod of diameter 30 mm and a coaxial
steel tube of cross-sectional area 1500 mm2 which are firmly attached at their ends.
Determine the stress in the copper and in the steel when the temperature of the
bar is dropped by 40°C and a compressive force of 100 kN is applied.
For copper, E = 100 GN/m2 with α = 16.5 x10-6
per ⁰C.
For steel, E = 200 GN/m2 with α = 11 x10-6
per ⁰C
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