A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a = 2.9 x 10-6/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.². The bars are unstressed when the structure is assembled at 30°F. After a concentrated load of P = 37 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1).
A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a = 2.9 x 10-6/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.². The bars are unstressed when the structure is assembled at 30°F. After a concentrated load of P = 37 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a = 2.9 x 10-6/°F] bar (1) and an
aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.². The bars are
unstressed when the structure is assembled at 30°F. After a concentrated load of P = 37 kips is applied and the temperature is
increased to 100°F, determine the normal force in bar (1).
6 ft
2.5 ft
B
3 ft
C
8 ft
1.5 ft
(2)
D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4baddd6-3c5b-4afa-8211-f663ac274aa6%2Fdbe9d902-f46f-4df8-b789-a9b788087cc6%2Fmspps5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a = 2.9 x 10-6/°F] bar (1) and an
aluminum alloy [E = 10,000 ksi; a = 12.5 x 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.². The bars are
unstressed when the structure is assembled at 30°F. After a concentrated load of P = 37 kips is applied and the temperature is
increased to 100°F, determine the normal force in bar (1).
6 ft
2.5 ft
B
3 ft
C
8 ft
1.5 ft
(2)
D
Transcribed Image Text:A
6 ft
2.5 ft
O4.30 kips
04.01 kips
O4.79 kips
O2.87 kips
2.49 kips
(1)
B
3 ft
C
P
8 ft
1.5 ft
(2)
D
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