Answered: Three uniform cross-section rods, two…

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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2.4-1 Three uniform cross-section rods, two of material A and one of material B, transmit the tensile force P (see figure). The two outer rods (Material A) are identical to each other. The cross-sectional area of the central bar (Material B) is 50% larger than the cross-sectional area of the outer bar. Also, the modulus of elasticity of material A is twice the modulus of elasticity of material B. (a) What is the ratio of the load P transmitted to the central bar? (b) What is the ratio of the stress of the central bar to the stress of the outer bar? (c) What is the ratio of the strain rate of the central bar to the strain rate of the outer bar?

면적보다 50 % 더 크다. 또한 재료 A의 탄성계수는 재료.
계수의 2배이다.
-a) 중앙봉에 전달되는 하중 P의 비율은 얼마인가?
-b) 바깥쪽 봉의 응력에 대한 중앙봉의 응력의 비는 얼ㄷ
c) 바깥쪽 봉의 변형률에 대한 중앙봉의 변형률의 비
1804
Bary
P
(d)
| 2.4-1
1231
2 그림에 보인 조립체는 강철 쉘(안지름 d, %3D 7 mm,
A348
9 mm)로 둘러싸인 황동 코어(지름 di = 6 mm)로 구~
P가 길이 L %=D 85 mm인 코어와 쉘을 압축하고 있다.
탄성계수는 각각 E, = 100 GPa, E, = 200 GPa이다.
%3D
아츠디7 이히 늬7

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