Originally Posted by
darobstacraw
Can anyone comment on what it would take to detect the type of fatigue that would cause a blade failure like this?
If you pointed a high speed IR camera at the front of the engine(s), would you perhaps see a different heat signature from the root of the fan blades?
In this age of Internet of Things where data is being so heavily collected from everything (especially jet engines) what metric would give you fore-warning of a failure of a fan blade?
Eddie current and dye static testing can detect cracks. Acoustic emission can detect crack growth (not very practical on a fan blade!).