2.14 The compound bar carries the axial forces P and 2P. Find the maximumallowable value of P if the working stresses are 40 ksi for steel and 20 ksi for alumi-num, and the total elongation of the bar is not to exceed 0.2 in.3 ftAluminumA = 0.6 in.²E = 10 x 106 psi4 ftSteelA = 0.4 in.²E = 29 x 106 psi2P

Givenσyst=40ksiσyal=20ksi∆t=0.2in

The compound bar carries the axial forces P and 2P. Find the r allowable value of P if the working stresses are 40 ksi for steel and 20 ksi f num, and the total elongation of the bar is not to exceed 0.2 in. 3 ft P 4 ft 2P

The compound bar carries the axial forces P and 2P. Find the r allowable value of P if the working stresses are 40 ksi for steel and 20 ksi f num, and the total elongation of the bar is not to exceed 0.2 in. 3 ft P 4 ft 2P

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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Concept explainers

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.

Question

2.14 The compound bar carries the axial forces P and 2P. Find the maximum
allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for alumi-
num, and the total elongation of the bar is not to exceed 0.2 in.
3 ft
Aluminum
A = 0.6 in.²
E = 10 x 106 psi
4 ft
Steel
A = 0.4 in.²
E = 29 x 106 psi
2P

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