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COMPONENT FAILURE MUSEUM

The main sections of the museum are listed below;

Metal Fatigue
Manufacturing Faults
Bicycle Components
Corrosion
Polymers
Composite Materials

Tools of the trade, some ways to investigate problems;
Photoelasticity
Dye penetrant testing

Glossary
of materials engineering terms

 

Failed nutcrackers

Click on pictures below for full size image.

 

These cheap nutcrackers failed on a walnut and caused the user to break a finger.

 

Examination of the fracture surface reveals the device had been die-cast with rather poor gas content control and an area of severe porosity was evident on the fracture surface that caused this brittle failure.

Return to Manufacturing faults

 

17/12/01 ed:AG

 
 
© 2005 Materials Engineering - Page last modified 18-Dec-2007