Using a modulus of rigidity of G=3.704 × 10° ksi and a modulus of elasticity of E = 10.1 × 10° psi, determine the value of Poisson's ratio for the aluminum alloy.
Using a modulus of rigidity of G=3.704 × 10° ksi and a modulus of elasticity of E = 10.1 × 10° psi, determine the value of Poisson's ratio for the aluminum alloy.
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

#### Diagram Description:
The diagram shows a cylindrical shaft compressed between two flat metal plates. The shaft’s initial length \( (L_0) \), initial diameter \( (d_0) \), and compacted length \( (L_f) \) are annotated on the diagram:
- \( L_0 = 50 \) in
- \( d_0 = 3.00 \) in
- \( L_f = 49.95 \) in
This setup illustrates the physical conditions under which the material properties such as modulus of rigidity and Poisson's ratio can be experimentally determined.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffae14c32-d1e2-4020-8be9-d90c8f175447%2F77daf584-396b-4590-8001-7daa4591a6f4%2Fybean3l.png&w=3840&q=75)
Transcribed Image Text:### Learning Goal:
To determine the modulus of rigidity of a material from its shear stress-strain diagram, Poisson’s ratio, and the expanded diameter of a cylindrical shaft made of the material that is loaded under compression.
The cylindrical shaft shown below is made of an aluminum alloy with a lower yield limit of 20 ksi in shear. The initial length of the specimen is given by \( L_0 = 50 \) in and the initial diameter is given by \( d_0 = 3.00 \) in. The specimen is then compressed between the two flat metal plates until it reaches a new compacted length of \( L_f = 49.95 \) in.

#### Diagram Description:
The diagram shows a cylindrical shaft compressed between two flat metal plates. The shaft’s initial length \( (L_0) \), initial diameter \( (d_0) \), and compacted length \( (L_f) \) are annotated on the diagram:
- \( L_0 = 50 \) in
- \( d_0 = 3.00 \) in
- \( L_f = 49.95 \) in
This setup illustrates the physical conditions under which the material properties such as modulus of rigidity and Poisson's ratio can be experimentally determined.

Transcribed Image Text:### Educational Exercise: Determining Poisson’s Ratio and Lateral Expansion
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#### Problem Statement
Using a modulus of rigidity of \( G = 3.704 \times 10^3 \; \text{ksi} \) and a modulus of elasticity of \( E = 10.1 \times 10^6 \; \text{psi} \), determine the value of Poisson’s ratio for the aluminum alloy.
##### Instructions:
- Express your answer to four significant figures.
- Click "View Available Hint(s)" if you need help.
##### Input Section:
```plaintext
ν = . (note .3888 was attempted but marked incorrect with 5 attempts remaining)
```
<button>Submit</button> <a href="#">Previous Answers</a>
---
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You have attempted an incorrect answer:
- Current Attempt: \( \nu = 0.3888 \)
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#### Part C - Lateral Expansion of the Cylindrical Shaft due to the Axially Applied Force
**Scenario Description:**
The cylindrical shaft experienced a lateral expansion due to the compressive force applied to it. Determine this lateral expansion, \( \delta' \), of the radius of the cylindrical shaft.
##### Instructions:
- Express your answer to three significant figures and include appropriate units.
---
By following these guidelines and accurately calculating the required values, you will gain a deeper understanding of material properties such as Poisson’s ratio and how they influence structural deformations.
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