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The prismatic bar has a cross-sectional area A = 3 in² and is made of material with modulus of elasticity E = 28E6 psi and coefficient of thermal expansion a = 8E-6°F¯!. It is constrained between rigid walls. The temperature is increased by 50 °F above the bar’s initial temperature T, and a 20,000-lb axial force to the right is applied midway between the two walls. What is the normal stress on a plane perpendicular to the bar's axis to the right of the point %3D where the force is applied?

The prismatic bar has a cross-sectional area A = 3 in² and is made of material with modulus of elasticity E = 28E6 psi and coefficient of thermal expansion a = 8E-6°F¯!. It is constrained between rigid walls. The temperature is increased by 50 °F above the bar’s initial temperature T, and a 20,000-lb axial force to the right is applied midway between the two walls. What is the normal stress on a plane perpendicular to the bar's axis to the right of the point %3D where the force is applied?

Elements Of Electromagnetics
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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**Problem 3.117** The prismatic bar has a cross-sectional area \( A = 3 \, \text{in}^2 \) and is made of material with a modulus of elasticity \( E = 28 \times 10^6 \, \text{psi} \) and a coefficient of thermal expansion \( \alpha = 8 \times 10^{-6} \, ^\circ\text{F}^{-1} \). It is constrained between rigid walls. The temperature is increased by \( 50 \, ^\circ\text{F} \) above the bar’s initial temperature \( T \), and a 20,000-lb axial force to the right is applied midway between the two walls. What is the normal stress on a plane perpendicular to the bar’s axis to the right of the point where the force is applied?
Transcribed Image Text:**Problem 3.117** The prismatic bar has a cross-sectional area \( A = 3 \, \text{in}^2 \) and is made of material with a modulus of elasticity \( E = 28 \times 10^6 \, \text{psi} \) and a coefficient of thermal expansion \( \alpha = 8 \times 10^{-6} \, ^\circ\text{F}^{-1} \). It is constrained between rigid walls. The temperature is increased by \( 50 \, ^\circ\text{F} \) above the bar’s initial temperature \( T \), and a 20,000-lb axial force to the right is applied midway between the two walls. What is the normal stress on a plane perpendicular to the bar’s axis to the right of the point where the force is applied?
The image shows a horizontal rectangular bar with a shiny metallic appearance. It is framed by two vertical lines on its left and right ends. Below the bar, there is a double-headed arrow indicating its length, labeled "15 in."
Transcribed Image Text:The image shows a horizontal rectangular bar with a shiny metallic appearance. It is framed by two vertical lines on its left and right ends. Below the bar, there is a double-headed arrow indicating its length, labeled "15 in."
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