Chapter 7, Problem 7.10P

Interpretation Introduction

(a)

Interpretation:

The failure of a component needs to be determined. Whether the failure of the composnent is due to the fault of the operator or manufactures needs to be explained.

Concept Introduction:

The formula of strain fracture toughness is as follows:

$K_{IC}=f\sigma \sqrt{\pi a}$

Here,

$\begin{array}{l}F=\text{ geometry factor}\hfill \\ \sigma =\text{applied stress}\hfill \\ a=\text{ flaw size}\hfill \end{array}$

Interpretation Introduction

(b)

Interpretation:

In addition to the analysis of part (a), the different factors causing failure needs to be explained.

Concept Introduction:

Analysis of failure of component:

The process of analyzing the component or date of component is called failure analysis. Failure analysis of a component is carried out:

1. During the manufacturing of component.
2. During testing of component.
3. During an inspection of component.
4. After delivery to the customer.