•4-69. Three bars each made of different materials are connected together and placed between two walls when the temperature is T, = 12°C. Determine the force exerted on the (rigid) supports when the temperature becomes T = 18°C. The material properties and cross-sectional area of each bar are given in the figure.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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•4-69. Three bars each made of different materials are
Copper
E- 120 GPa
a = 12(10 ")/C ape = 21(10 *)/°C acu = 17(10 ")/"C
A = 515 mm
Steel
Brass
E = 200 GPa
connected together and placed between two walls when the
temperature is T, = 12°C. Determine the force exerted
on the (rigid) supports when the temperature becomes
T2 = 18°C. The material properties and cross-sectional
area of each bar are given in the figure.
E = 100 GPa
%3D
|A = 200 mm Awr = 450 mm²
– 300 mm-
-200 mm-
100 mm
Transcribed Image Text:•4-69. Three bars each made of different materials are Copper E- 120 GPa a = 12(10 ")/C ape = 21(10 *)/°C acu = 17(10 ")/"C A = 515 mm Steel Brass E = 200 GPa connected together and placed between two walls when the temperature is T, = 12°C. Determine the force exerted on the (rigid) supports when the temperature becomes T2 = 18°C. The material properties and cross-sectional area of each bar are given in the figure. E = 100 GPa %3D |A = 200 mm Awr = 450 mm² – 300 mm- -200 mm- 100 mm
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