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Abstract
Gasturbines operate at extreme conditions, often at the design limits of turbine blades which are more likely to experience failures than other less stressed parts. Cases of blade failures are studied for a turbo jet engine in service. Small-amplitude relative oscillatory sliding displacements between the contacting surfaces of blade and disc are known as fretting and it arises as a result of cyclic loading of one of the contacting members. The paper presents case studies of fretting failure in turbine blades and suggests remedial measures to prevent such failures.
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References
- Hakan Ozaltun Jeremy Seidt, M. et al., "An EnergyBased Method For Uni-Axial Fatigue Life Calculation", GT2009-59512, Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, Florida, USA.
- Ashok Koul, et al., "Residual Life Assessment and Life Cycle Management of Design Life Expired Discs", GT2009-60352, Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, Florida, USA.
- Jeremy S. Daily and Nathan W. Klingbeil., "Determining the Scatter in Fatigue Crack Growth Rate Based on Variations in Bulk Property Data", GT2009-59117, Proceedings of ASME Turbo Expo
- , June 8-12, 2009, Orlando, Florida, USA.
- Arakere, N.K. and Gregory Swanson., "Fretting Stresses in Single Crystal Superalloy Turbine Blade
- Attachments", Journal of Tribology, Vol.123, Issue 2, April 2001, pp.413-423.
- Suresh, S., "Fatigue of Materials", Second Edition, Cambridge University Press, 2003, pp.256-257.
- Julie A Bannantine., Jess J Comer and James L Handrock., "Fundamental of Metal Fatigue Analysis", Prentice Hall Inc, 1990, pp.40-87.
References
Hakan Ozaltun Jeremy Seidt, M. et al., "An EnergyBased Method For Uni-Axial Fatigue Life Calculation", GT2009-59512, Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, Florida, USA.
Ashok Koul, et al., "Residual Life Assessment and Life Cycle Management of Design Life Expired Discs", GT2009-60352, Proceedings of ASME Turbo Expo 2009, June 2009, Orlando, Florida, USA.
Jeremy S. Daily and Nathan W. Klingbeil., "Determining the Scatter in Fatigue Crack Growth Rate Based on Variations in Bulk Property Data", GT2009-59117, Proceedings of ASME Turbo Expo
, June 8-12, 2009, Orlando, Florida, USA.
Arakere, N.K. and Gregory Swanson., "Fretting Stresses in Single Crystal Superalloy Turbine Blade
Attachments", Journal of Tribology, Vol.123, Issue 2, April 2001, pp.413-423.
Suresh, S., "Fatigue of Materials", Second Edition, Cambridge University Press, 2003, pp.256-257.
Julie A Bannantine., Jess J Comer and James L Handrock., "Fundamental of Metal Fatigue Analysis", Prentice Hall Inc, 1990, pp.40-87.