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Fatigue life of dovetail joints: Verification of a simple biaxial model

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Abstract

A biaxial fatigue specimen, designed to model the state of stress of the blade to disk joint in a typical gas turbine, has been analyzed and tested. The method of analysis was shown to predict the location of the worst damage and of crack initiation. This paper describes the analysis and testing of a simplified model that may be used in preference to the previous one.

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References

  1. Boddington, P.H.B. and Ruiz, C., “A Biaxial Fatigue Test of Dovetail Joints,” Proc. Advances in Life Prediction Methods, ASME Int. Conf.

  2. Bramhall, R., “Studies in Fretting Fatigue,” D. Phil. Thesis, Oxford Univ. (1973).

  3. Fretting Fatigue, ed. R.B. Waterhouse, Applied Science (1981).

  4. Ruiz, C., Chen, K. andBoddington, P.H.B., Comp. and Struct.,20,731–735 (1985).

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  5. Ruiz, C., Boddington, P.H.B. andChen, K.,Experimental Mechanics,24,208–217 (1984).

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Authors and Affiliations

  1. Department of Aeroengineering, Nanjing Aeronautical Institute, Nanjing, People's Republic of China

    M. J. He (Associate Professor)

  2. Department of Engineering Science, Engineering, Oxford University, Parks Road, OX1 EPJ, Oxford, UK

    C. Ruiz (Reader in Material)

Authors
  1. M. J. He
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  2. C. Ruiz
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He, M.J., Ruiz, C. Fatigue life of dovetail joints: Verification of a simple biaxial model. Experimental Mechanics 29, 126–131 (1989). https://doi.org/10.1007/BF02321364

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  • DOI: https://doi.org/10.1007/BF02321364

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