HomeGroupsEngineering

Engineering

Materials engineering

Study of the Airbus prototype

The ENGIN-X instrument: measuring residual stress within friction stir welds on an Airbus prototype wing rib
View full-size image

The group operates the Engin-x diffractometer, a world-leading instrument optimised for residual stress measurements.

Team

The ISIS Materials Engineering Programme is concerned with research into residual stresses in engineering components, as well as fundamental studies of the thermomechanical properties of engineering-relevant materials.

Residual stresses are the stresses which are "frozen in" to materials and components even when no in-service loads are applied. In many structural engineering applications, is important to account for and control these stresses. We use neutrons to probe these stresses non-destructively, deep within the bulk of engineering components and materials. Typically the measurements influence the development of novel processing technologies and new structural materials. For example, work in the following areas has been carried out at ISIS:

Aerospace:

  • Novel joining methods (e.g. friction welding methods)
  • Surface treatments (e.g. laser peening)
  • Composite reinforcements
  • Fatigue of welded aerospace components

Power generation:

  • Structural integrity of steam pipework and pressure vessels
  • Microstress evaluation in nuclear alloys

Transport:

  • Residual stresses and wear in railway rails and wheels
  • Fatigue of magnesium racing wheels
  • Welded ship superstructures

Properties of novel materials:

  • Shape memory alloys
  • Ferroelectrics
  • Ultra high strength steels
  • High temperature superalloys
  • Nanocomposites
Bookmark and Share
Skip to the top of the page