Forschungs- & Entwicklungsinformationsdienst der Gemeinschaft - CORDIS

Life prediction algorithms for aero engine discs

A parametric model has been developed to perform cycle by cycle crack propagation predictions for aero engine discs. The unknowns in the model were determined by extensive specimen testing.

A first model was developed to predict crack propagation. A comparison with the experimental data revealed that the inclusion of retardation effects was advisable.

Benefits include:
increased reliability in component life prediction;
increased flight safety;
reduced spare part cost.


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