A short bar of copper, 25 mm in diameter, is enclosed centrally within a steel tube of external diameter 36 mm and thickness 3 mm. At 0°C the ends of the bar and tube are rigidly fastened together and the complete assembly heated to 80°C. Calculate the stress in the bar and in the tube if E for copper is 100 000 N/mm?, E for steel is 200 000 N/mm? and the coefficients of linear expansion of copper and steel are 0.000 01/°C and 0.000 006/°C, respectively. A short bar of copper, 25 mm in diameter, isenclosed centrally within a steel tube of externaldiameter 36 mm and thickness 3 mm. At 0°C theends of the bar and tube are rigidly fastenedtogether and the complete assembly heated to 80°C.Calculate the stress in the bar and in the tube if E forcopper is 100 000 N/mm², E for steel is 200 000N/mm2 and the coefficients of linear expansion ofcopper and steel are 0.000 01/°C and 0.000 006/°C,respectively.

Stress produces in the material due to changes in temperature is known as thermal stress. Condition…

Answered: A short bar of copper, 25 mm in…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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A short bar of copper, 25 mm in diameter, is enclosed centrally within a steel tube of external diameter 36 mm and thickness 3 mm. At 0°C the ends of the bar and tube are rigidly fastened together and the complete assembly heated to 80°C. Calculate the stress in the bar and in the tube if E for copper is 100 000 N/mm?, E for steel is 200 000 N/mm? and the coefficients of linear expansion of copper and steel are 0.000 01/°C and 0.000 006/°C, respectively.

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