A steel [E = 30,100 ksi; a = 6.3 x 10-6/°F] pipe column (1) with a cross-sectional area of A₁ = 5.80 in.² is connected at flange B to an aluminum alloy [E = 10,700 ksi; a = 13.1 x 10-6/°F] pipe (2) with a cross-sectional area of A2 = 3.50 in.². The assembly (shown in the figure) is connected to rigid supports at A and C. It is initially unstressed at a temperature of 92°F. Assume L₁ = 115 in., L₂ = 149 in., P = 22 kips. (a) At what temperature will the normal stress in steel pipe (1) be reduced to zero? (b) Determine the normal stresses (positive if tensile, negative if compressive) in steel pipe (1) and aluminum pipe (2) when the temperature reaches -11°F. A (1) L₁ B P L2

A steel [E = 30,100 ksi; a = 6.3 x 10-6/°F] pipe column (1) with a cross-sectional area of A₁ = 5.80 in.² is connected at flange B to an aluminum alloy [E = 10,700 ksi; a = 13.1 x 10-6/°F] pipe (2) with a cross-sectional area of A2 = 3.50 in.². The assembly (shown in the figure) is connected to rigid supports at A and C. It is initially unstressed at a temperature of 92°F. Assume L₁ = 115 in., L₂ = 149 in., P = 22 kips. (a) At what temperature will the normal stress in steel pipe (1) be reduced to zero? (b) Determine the normal stresses (positive if tensile, negative if compressive) in steel pipe (1) and aluminum pipe (2) when the temperature reaches -11°F. A (1) L₁ B P L2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A steel [E = 30,100 ksi; a = 6.3 x 10-6/°F] pipe column (1) with a cross-sectional area of A₁ = 5.80 in.² is connected at flange B to an
aluminum alloy [E = 10,700 ksi; a = 13.1 x 10-6/°F] pipe (2) with a cross-sectional area of A₂ = 3.50 in.². The assembly (shown in the
figure) is connected to rigid supports at A and C. It is initially unstressed at a temperature of 92°F. Assume L₁ = 115 in., L₂ = 149 in., P =
22 kips.
(a) At what temperature will the normal stress in steel pipe (1) be reduced to zero?
(b) Determine the normal stresses (positive if tensile, negative if compressive) in steel pipe (1) and aluminum pipe (2) when the
temperature reaches -11°F.
A
(1)
L₁
B
P
P
L2
с

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