Chapter 8, Problem 8.24P

Interpretation Introduction

Interpretation:

The final diameter of the given copper bar needs to be calculated.

Concept Introduction:

The general relationship between the percentage cold working and area is based on the formula given below

  $\begin{array}{l}\%CW=\left(\frac{A_0-A_f}{A_0}\right)\times 100\\ A_0=\left(\frac{\pi }{4}{d}_0^2\right)\\ A_f=\left(\frac{\pi }{4}{d}_f^2\right)\end{array}$

For the above equation

  $\%CW$ is the percentage of cold working

  ${\text{A}}_{\text{0}}$ is the initial area of copper wire

  $A_f$ is the final area of coper bar