CAAAD
Thank you for your patience, and your kind response.
"Burst" is what's called in the English language a euphemism. "Same as", "Proxy-word", or stand in.
It is used to pretty up a term that may startle, offend, or distract. Explosion is an accurate term, and I can see why a partisan would prefer "Burst". Boils burst, even superchargers burst, and bubbles certainly.
This engine exploded. The pressure within the case became so great, it exceeded maximum designed for limits, quite high, as we know. A five hundred pound Nickle Alloy disc was blown off its shaft with enough force to double back its drive arm, causing it to separate into three pieces and completely shred a Titanium container on its way through a wing and its spar. No data exists as to how much altitude it gained after exiting the a/c wing.
Have you taken note of the drive arm after the "burst"? This feature was blown 180 degrees from normal, with nothing for the "explosion" to work against except the pressure in the cavity. This may be a new world/old world thing, but nomenclature is the least of Rolls' problems. (imo)
all best, bearfoil