Abstract
Failure of high pressure (HP) turbine blades in a low bypass turbofan engine is analyzed to determine its root cause. Forensic and metallurgical investigations are carried out on all the failed blades as well as the failed components of the downstream modules. Fatigue failure of one HP turbine blade at dovetail region is found to be the primary failure. This failure has caused extensive damages in high- and low-pressure turbine modules. Remedial measures are also suggested to prevent such failures.
Similar content being viewed by others
References
Cowles, B.A.: High cycle fatigue in aircraft gas turbines—an industry perspective. Int. J. Fract. 80, 147–163 (1996)
Ozaltun, H., Jeremy Seidt, M. et al.: An energy-based method for uni-axial fatigue life calculation, GT2009-59512. In: Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, FL, USA
Koul, A.K. et al.: Residual life assessment and life cycle management of design life expired discs, GT2009-60352. In: Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, FL, USA
Poursaeidi, E., Aieneravaie, M., Mohammadi, M.R.: Failure analysis of a second stage blade in a gas turbine engine. J. Eng. Fail. Anal. 15(8), 1111–1129 (2008)
Hour, J., Wicks, B.J., Antoniou, R.A.: An investigation of fatigue failures of turbine blades in a gas turbine engine by mechanical analysis. J. Eng. Fail. Anal. 9(2), 201–211 (2002)
Kazempour-Liacy, H., Abouali, S., Akbari-Garakani, M.: Failure analysis of a first stage gas turbine blade. J. Eng. Fail. Anal. 18(1), 517–522 (2011)
Suresh, S.: Fatigue of Materials, 2nd edn, pp. 256–257. Cambridge University Press, Cambridge (2003)
Bannantine, J.A., Comer, J.J., Handrock, J.L.: Fundamental of metal fatigue analysis, pp. 40–87. Prentice Hall Inc., Englewood Cliffs (1990)
Daily, J.S., Klingbeil, N.W.: Determining the scatter in fatigue crack growth rate based on variations in bulk property data, GT2009-59117. In: Proceedings of ASME Turbo Expo 2009, 8–12 June 2009, Orlando, FL, USA
Eliaz, N., Shemesh, G., Latanision, R.M.: Hot corrosion in gas turbine components. J. Eng. Fail. Anal. 9(1), 31–43 (2002)
Acknowledgments
The authors are very grateful to the Executive Director, Engine Division, Hindustan Aeronautics Limited; General Manager, Foundry & Forge Division, Hindustan Aeronautics Limited; and Chief Executive (Airworthiness), CEMILAC for their kind permission for publishing this article.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mishra, R.K., Johney, T., Srinivasan, K. et al. Failure Analysis of HP Turbine Blades in a Low Bypass Turbofan Engine. J Fail. Anal. and Preven. 13, 274–281 (2013). https://doi.org/10.1007/s11668-013-9674-5
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11668-013-9674-5