Essentials Of Materials Science And Engineering
Essentials Of Materials Science And Engineering
4th Edition
ISBN: 9781337385497
Author: WRIGHT, Wendelin J.
Publisher: Cengage,
Question
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Chapter 6, Problem 6.42P
Interpretation Introduction

(a)

Interpretation:

The smaller grain size sample should be determined from given two samples using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

Interpretation Introduction

(b)

Interpretation:

The lower temperature should be identified from given two samples tested using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

Interpretation Introduction

(c)

Interpretation:

The tougher sample should be identified from given two samples tested using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

Interpretation Introduction

(d)

Interpretation:

The alloyed sample should be identified from given two samples tested using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

Interpretation Introduction

(e)

Interpretation:

Less hard sample should be identified from given two samples tested using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

Interpretation Introduction

(f)

Interpretation:

The given stress and strain curve should be identified whether it is true stress-strain curve or engineering stress-strain curve.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

The engineering stress-strain graph is also represents the strength of materials along with an acceptance test for the given specification of materials.

Interpretation Introduction

(h)

Interpretation:

The sample with higher shear yield strength should be identified from given two samples tested using the tensile stress and strain diagrams with labeled figure 1 and 2.

Concept Introduction:

The tensile stress and strain diagram or graph can be obtained through performing a tensile test on the specimen where there is a use of tensile test machines providing controlled uniformly increasing tensile force.

This graph or diagram is useful to understand relationship between the load applied to material and the deformation occurred in the material.

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Note: You might want to do the last question first because the last question asks you to write some python code to calculate the zeros and poles. You could use that code here to help you (except the first problem which you should be able to do by inspection alone) Find the poles and zeros for each of the following transfer functions 1. S+3 H(s) = 8 5 2. H(s): = s238 +1 s2 +48 +3 3. s(s+4) H(s) s3+2s23s 4. 82-586 H(s) = - 8382-68 5. H(s): = s2 +48 +3 s45836s2 - 6
Write python program to plot the zeros and poles if a user provides the coefficients for the numerator and denominator of the transfer function. Since the zeros and poles can be complex, this plot is essentially and argand diagram, where the x axis is the real component and the y axis the imaginary component of a given zero or pole. Create a method called plot-poles zeros(num, den) which takes two lists containing the coefficients. Here is an example and the resulting plot. num [1, 3, 7] # yields zeros at -1.5 +/- 2.17945j den = [1, 4, 5, 3] # yields poles at -2.46557, -0.7672143 +/- 0.7925519j plot_poles_zeros(num, den) Imaginary Page 2 Pole-Zero Plot 3 Zeros × Poles 2 1 -2 1 * Real When you write your code you are only allowed to use the packages numpy and matplotlib. Make sure you label the axes, provide a legend and give a title to your plot (See the example plot). Hint: numpy has a method called roots. When given a list of numbers corresponding to the coefficients of a polynomial,…
a) [10] Compute the zeros and poles for the following transfer function: $2 +5s+6 H(s): s2 +3s+2 b) [10] Factor both polynomials in the numerator and denominator. What does this tell you about one of the poles and zeros you found in a)?

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Essentials Of Materials Science And Engineering

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