Abstract
The application of fracture mechanics based methods forms an integral part in the prediction of safe life and damage tolerant behaviour of critical parts in aero engines. For compressor and turbine discs, this comprises the calculation of cyclic life to burst, integrity under extreme loading conditions and damage tolerant behaviour for different kinds of anomalies encountered in manufacturing and/or in-service application. Taking the example of the introduction of the new nickel-based disc alloy ATI 718Plus®, the typical methods, the extent of material and component testing, and some limitations of current methods are presented. This project is a joint effort between Rolls-Royce Deutschland and several universities and research institutions.
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References
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Acknowledgments
The work was conducted as a part of the German-funded research programme RoKoTec (LuFoIV) and supported by the Bundesministerium für Wirtschaft und Energie (BMWi) under grant number 20T0813. Special thanks to Bastian Kähler for the extensive processing of the test data and performance of numerical studies.
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Springmann, M., Schurig, M., Hünert, D., Rothkegel, W., Schlums, H. (2016). Application of Fracture Mechanics for the Life Prediction of Critical Rotating Parts for Aero Engines. In: Hütter, G., Zybell, L. (eds) Recent Trends in Fracture and Damage Mechanics. Springer, Cham. https://doi.org/10.1007/978-3-319-21467-2_4
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DOI: https://doi.org/10.1007/978-3-319-21467-2_4
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