Improvements in x-Ray computed tomography capabilities have occurred over the past decade making this non-invasive damage characterization technology more efficient. Now, how extensive is this modality being used in current research for ballistic impact damage characterization?
I've attempted to use XCT for examining post-ballistic test ceramic/composite armour systems, but so far I've been unable to obtain quantiative results. I think this is primarily because the comminution of fragments in the rubble pool is so extensive the XCT cannot satisfactorily detect where one fragment ends and the next begins. There are other issues as well, such as the presence of metal bullet fragments skewing the density histograms.
Having said that it's been great for qualitative examination, and really helps highlight the ways different ceramics fragment in response to a ballistic event.
I cannot speak for the laboratory-based systems, looking in the literature I collected in the past years I have found only one article: DOI: 10.1016/j.ijimpeng.2015.05.012 . At the synchrotron light sources I cannot remember having seen such a request, indeed / of course I also do not know all activities. More common is that people start to exploit MHz-framerate radioscopy at synchrotron light sources to study impact dynamics "in situ".
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