Answered: The rigid bar ABCD of negligible weight…

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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The rigid bar ABCD of negligible weight is initially horizontal, and the steel rods attached at A and C are stress-free. The load P is then applied and there is a temperature change in the steel rods. P = 38 kips with the stresses in the two steel rods equal. Assume that there is no buckling in the rods. The coefficient of linear expansion is 6.5 x 10^–6 per degree F and E = 29 x 10^6 psi for steel.

a. Determine the change in temperature. Indicate increase or decrease in temperature.

b. Determine the axial deformation of the steel rod at A (in inches).

c. Determine the axial deformation of the steel rod at C (in inches).

7. The rigid bar ABCD of negligible weight is initially horizontal, and the steel rods
attached at A and C are stress-free. The load Pis then applied and there is a
temperature change in the steel rods. P = 38 kips with the stresses in the two
steel rods equal. Assume that there is no buckling in the rods. The coefficient of
linear expansion is 6.5 x 10^-6 per degree F andE = 29 x 10^6 psi for steel.
A = 0.5 in.²
3 ft
| A
- 4 ft
te 2 ft→e 2 ft →
4 ft
A = 0.75 in.²

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