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The gap between the aluminum bar AB and the magnesium bar 0.2 m 0.25 m CD is 0.4 mm when the temperature is at 20° C. A C B D. a) Determine the temperature required to just close the gap. Aluminum Magnesium b) Determine the normal stress developed in the bars if the temperature rises to 120° C. c) Determine the change in the length of the bar CD. (T2 =120° C) Given: Eal = 70 GPa, Emg = 45 GPa, al =23 (10-)/'C, Aat = 500 mm², %3D Amg =26 (10-6)/ C, Amg =1200 mm2

The gap between the aluminum bar AB and the magnesium bar 0.2 m 0.25 m CD is 0.4 mm when the temperature is at 20° C. A C B D. a) Determine the temperature required to just close the gap. Aluminum Magnesium b) Determine the normal stress developed in the bars if the temperature rises to 120° C. c) Determine the change in the length of the bar CD. (T2 =120° C) Given: Eal = 70 GPa, Emg = 45 GPa, al =23 (10-)/'C, Aat = 500 mm², %3D Amg =26 (10-6)/ C, Amg =1200 mm2

Elements Of Electromagnetics
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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The gap between the aluminum bar AB and the magnesium bar 0.2 m 0.25 m CD is 0.4 mm when the temperature is at 20° C. A C B D a) Determine the temperature required to just close the gap. Aluminum Magnesium b) Determine the normal stress developed in the bars if the temperature rises to 120° C. c) Determine the change in the length of the bar CD. (T2 =120° C) Given: Eal = 70 GPa, Emg= 45 GPa, Aal =23 (10-)/ C, Aal = 500 mm², Amg =26 (10-6)/C, Amg =1200 mm2
Transcribed Image Text:The gap between the aluminum bar AB and the magnesium bar 0.2 m 0.25 m CD is 0.4 mm when the temperature is at 20° C. A C B D a) Determine the temperature required to just close the gap. Aluminum Magnesium b) Determine the normal stress developed in the bars if the temperature rises to 120° C. c) Determine the change in the length of the bar CD. (T2 =120° C) Given: Eal = 70 GPa, Emg= 45 GPa, Aal =23 (10-)/ C, Aal = 500 mm², Amg =26 (10-6)/C, Amg =1200 mm2
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