The ENGIN-X instrument: measuring residual stress
within friction stir welds on an Airbus prototype wing rib
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The group operates the Engin-x diffractometer, a world-leading instrument optimised for residual stress measurements.
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:
Properties of novel materials:
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