The rigid bar AC is pinned at A and attached to bars DB and CE as shown in the figure. The weight of AC is 50 kN and the weights of the other two bars are negligible. Consider the temperature of both bars DB and CE to be raised 35°C. Find the resulting normal stresses in these two bars. DB is copper for which E = 90 GPa, ? = 18 × 10–6 /°C, and the crosssectional area is 1000 mm2 , while CE is steel for which E = 200 GPa, ? = 12 × 10–6 /°C, and the cross section is 500 mm2 . Neglect any possibility of lateral buckling of the bars
The rigid bar AC is pinned at A and attached to bars DB and CE as shown in the figure. The weight of AC is 50 kN and the weights of the other two bars are negligible. Consider the temperature of both bars DB and CE to be raised 35°C. Find the resulting normal stresses in these two bars. DB is copper for which E = 90 GPa, ? = 18 × 10–6 /°C, and the crosssectional area is 1000 mm2 , while CE is steel for which E = 200 GPa, ? = 12 × 10–6 /°C, and the cross section is 500 mm2 . Neglect any possibility of lateral buckling of the bars
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter4: Mechanical Processes
Section: Chapter Questions
Problem 4.20P
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3. The rigid bar AC is pinned at A and attached to bars DB and CE as shown in the figure. The weight of AC is 50 kN and the weights of the other two bars are negligible. Consider the temperature of both bars DB and CE to be raised 35°C. Find the resulting normal stresses in these two bars. DB is copper for which E = 90 GPa, ? = 18 × 10–6 /°C, and the crosssectional area is 1000 mm2 , while CE is steel for which E = 200 GPa, ? = 12 × 10–6 /°C, and the cross section is 500 mm2 . Neglect any possibility of lateral buckling of the bars.
Transcribed Image Text:D
E
1 m
A
B
-1m
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