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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

 

Lorry spring failure

 Click on pictures below for full size image in new window. 

 

 

Springs suffer a combination of bending and torsion and fatigue cracks propagate at right angles to the principal stresses. Hence the fracture surface is complex even at higher magnification. The surface morphology is also influenced by any texture in the drawn wire used in manufacture.

Return to metal fatigue section

 

ed; AG17/12/01

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