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Failure Analysis of Polymers

Failure of components in service can be caused by many factors, some of which include:

  • Material defects
  • Manufacturing defects
  • Incorrect selection of materials for the application
  • Design limitations/shortcomings
  • Inadequate service data - parts are overloaded
  • In-service damage
  • Changes in service environment


All of these factors can cause premature failure of components and systems well short of their design lives and raise significant warranty issues for suppliers.

MERL are actively involved in investigations into why components have failed and what can be done to modify the component to minimise the chances of a similar failure recurring.

A key benefit of employing MERL for failure analysis is that all failure investigations are independent of all parties who have an interest in the failed component.

Investigations often include laboratory testing of components to simulate the failure in controlled laboratory conditions and to then correlate laboratory failure with the service failure. Finite Element Analysis is also used to study design modifications before redesigned prototype components are manufactured and retested.

Components analysed include:

  • Anti-vibration mounts and bushes - automotive, rail, marine, civil
  • Rail couplings
  • Seals
  • Pressurised hoses - automotive, rail, oil and gas, civil
  • Composite aerospace components
  • Primary hydraulic systems driveshafts - aerospace
  • Fibre reinforced plastic pipes and building structures

 
 

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Materials Engineering Research Laboratory Limited is Wilbury Way,
Hitchin, Hertfordshire, UK, SG4 0TW.
Registered in England. Company registration number: 2015020.

Tel: +44(0)1462 427 850
Polymer Engineering, Testing, Inspection, Research and Development, UK