Measuring residual stresses non-destructively using deeply penetrating neutron and synchrotron x-ray probes has been employed for decades in academic work. However, despite being a unique analysis tool, the method has not yet found widespread application in industrial applications.
We will investigate the barriers for increased industrial usage of the tools – both from a technical and...
There is a range of experimental techniques available for the determination of residual stress. This talk will give an overview of the methods, their advantages and disadvantages, and particular examples of the application of incremental hole drilling and the contour method.
Local residual stresses are often the consequence in all technical components due to the selected manufacturing strategy. In the course of the components use, these can be superimposed locally with the load stresses and lead to premature failure. Therefore, the residual stress state influence directly the life time of technical components. To avoid this, residual stress analysis on technical...
Synchrotrons offer high photon intensities that can be used for X-ray diffraction (XRD) measurements with high spatial or time resolution. In addition, photons with high energies have a large penetration depth in many materials, enabling residual stress (RS) analysis in large samples. There are different techniques for diffraction-based RS analysis at the synchrotron using, e.g., simple...
Diffraction methods are powerful tools for non-destructive analysis of applied or residual
stresses. The high penetrating power of neutrons when compared to laboratory x-ray sources,
i.e. several cm instead of a few tens of μm, opens up the possibility to analyze residual stresses
in the interior of technical components rather than just at the surface. This also allows the use
of bulky...
