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, a = 18 x 10-6/°C, and the cross-sectional area is 1000 mm?, while CE is steel for which E = 200 GPa, a = 12 x 10-6/°C, and the cross section is 500 mm?. Neglect any possibility of lateral buckling of the bars. %3D E I m A B C -Ir
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, a = 18 x 10-6/°C, and the cross-sectional area is 1000 mm?, while CE is steel for which E = 200 GPa, a = 12 x 10-6/°C, and the cross section is 500 mm?. Neglect any possibility of lateral buckling of the bars. %3D E I m A B C -Ir
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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With illustrations please and detailed Solution.
![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, a = 18 x 10-6/°C, and the
cross-sectional area is 1000 mm?, while CE is steel for
which E = 200 GPa, a = 12 x 10-6/°C, and the cross
section is 500 mm?. Neglect any possibility of lateral
buckling of the bars.
%3D
D
E
I m
A
B
C
-Ir](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9d148386-dfd8-43ee-ade6-60bea3cab2b2%2F23438ea8-510d-4118-9007-3261d0e78c4d%2Fux9ex5r_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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, a = 18 x 10-6/°C, and the
cross-sectional area is 1000 mm?, while CE is steel for
which E = 200 GPa, a = 12 x 10-6/°C, and the cross
section is 500 mm?. Neglect any possibility of lateral
buckling of the bars.
%3D
D
E
I m
A
B
C
-Ir
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