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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

 

Bolt Failure

Click on pictures below for full size image.

  

 Steel bolt

This high tensile steel bolt failed under low stress high cycle conditions with a fatigue crack running from 9 o'clock as shown by the beach marks. The SEM image of the fatigued surface (shown left) is found to have no striations due to the high yield strength and high cycle conditions.

Return to metal fatigue section

ed:AG 17/12/01

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