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The two bars (1) and (2) are made of the aluminum with E = 70 GPa, has the same cross section of 100 mm x 20 mm, and supported by rigid supports at A and C. The coefficient of thermal expansion of the material is 23 x 10 -6/°C. At T = 25°C, the two bars have a gap of 5 mm as shown.

The two bars (1) and (2) are made of the aluminum with E = 70 GPa, has the same cross section of 100 mm x 20 mm, and supported by rigid supports at A and C. The coefficient of thermal expansion of the material is 23 x 10 -6/°C. At T = 25°C, the two bars have a gap of 5 mm as shown.

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
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The two bars (1) and (2) are made of the aluminum with E = 70 GPa, has the same cross section of 100 mm x 20 mm, and supported by rigid supports at A and C. The coefficient of thermal expansion of the material is 23 x 10 -6/°C. At T = 25°C, the two bars have a gap of 5 mm as shown. A [Select] [Select] (1) [Select] 1.6 m B [Select] (2) 2.8 m (in °C) will the two bars come into contact? -5 mm gap (a) At what temperature (in °C) will the stress on the bars be 100 MPa? (b) At what temperature (c) What is the stress (in MPa) in bar (1) when the temperature is 100°C? (d) What is the reaction force (in KN) at fixed support A when the temperature is 100°C?
Transcribed Image Text:The two bars (1) and (2) are made of the aluminum with E = 70 GPa, has the same cross section of 100 mm x 20 mm, and supported by rigid supports at A and C. The coefficient of thermal expansion of the material is 23 x 10 -6/°C. At T = 25°C, the two bars have a gap of 5 mm as shown. A [Select] [Select] (1) [Select] 1.6 m B [Select] (2) 2.8 m (in °C) will the two bars come into contact? -5 mm gap (a) At what temperature (in °C) will the stress on the bars be 100 MPa? (b) At what temperature (c) What is the stress (in MPa) in bar (1) when the temperature is 100°C? (d) What is the reaction force (in KN) at fixed support A when the temperature is 100°C?
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