Fatigue, bird strike or foreign object damage can cause a blade to fail and be released thus releasing a high level of kinetic energy.
Aviation authorities require that a released blade be fully contained within the engine.
A series of small scale laboratory tests and numerical simulations are performed before a full scale certification test is undertaken. In the examples below the influence of the feature on the containment casing was investigated with respect to blade diversion and containment. Engine Laboratory simulation of blade release containment Click the picture below to view the animation. Numerical simulation of blade release containment Click the picture below to view the animation. Aerospace Bird strike FOD Blade containment Maintained by WebMaint.