I’ve seen footage of Pratt & Whitney testing their 777 engines (PW4000 I think) in which they detonate one of the fan blades to test the engine’s containment casing (sorry, don’t know the technical terms).
It really makes a mess of the engine, but none of the debris punctured through the sides of the casing. The video didn’t mention whether or not vibration was being measured, but I am sure that would have been taken into account.
Here is a link to the
P & W Engine Testing section of their web page which briefly describes the various tests inflicted upon each of their engine designs.
Have a good one, Dave.