Abstract
Predicting the fatigue life of remanufactured centrifugal compressor impellers is a critical problem. In this paper, the S-N curve data were obtained by combining experimentation and theory deduction. The load spectrum was compiled by the rain-flow counting method based on the comprehensive consideration of the centrifugal force, residual stress, and aerodynamic loads in the repair region. A fatigue life simulation model was built, and fatigue life was analyzed based on the fatigue cumulative damage rule. Although incapable of providing a high-precision prediction, the simulation results were useful for the analysis of fatigue life impact factors and fatigue fracture areas. Results showed that the load amplitude greatly affected fatigue life, the impeller was protected from running at over-speed, and the predicted fatigue life was satisfied within the next service cycle safely at the rated speed.
Similar content being viewed by others
References
Farrahi G H, Tirehdast M, Masoumi Khalil Abad E, et al. Failure analysis of a gas turbine compressor. Engineering Failure Analysis, 2011, 18(1): 474–484
Hou J F, Wicks B J, Antoniou R A. An investigation of fatigue failures of turbine blades in a gas turbine engine by mechanical analysis. Engineering Failure Analysis, 2002, 9(2): 201–211
Ren W, Dong S, Xu B, et al. Process optimization and forming repair of laser remanufacture for FV520(B) steel blade simulator. Journal of Materials Engineering, 2015, 43(1): 6–12 (in Chinese)
Ren W, Dong S, Xu B, et al. Analysis of three-dimension deformation for thin-walled blade simulator repaired by laser deposited. Transactions of the China Welding Institution, 2015, 36 (6): 52–56 (in Chinese)
Liu C, Liu S, Gao S, et al. Fatigue life assessment of the centrifugal compressor impeller with cracks based on the properties of FV520B. Engineering Failure Analysis, 2016, 66: 177–186
Wang R, Zhang X, Tu S, et al. A modified strain energy density exhaustion model for creep-fatigue life prediction. International Journal of Fatigue, 2016, 90: 12–22
Liu S, Liu C, Hu Y, et al. Fatigue life assessment of centrifugal compressor impeller based on FEA. Engineering Failure Analysis, 2016, 60: 383–390
Schijve J. Fatigue of Structures and Materials. Beijing: Aviation Industrial Press, 2014
Kong F R, Ma J J, Kovacevic R. Numerical and experimental study of thermally induced residual stress in the hybrid laser — GMA welding process. Journal of Materials Processing Technology, 2011, 211(6): 1102–1111
Ramamurti V, Subramani D A, Sridhara K. Free vibration analysis of a turbocharger centrifugal compressor impeller. Mechanism and Machine Theory, 1995, 30(4): 619–628
Witek L. Experimental crack propagation and failure analysis of the first stage compressor blade subjected to vibration. Engineering Failure Analysis, 2009, 16(7): 2163–2170
Zhang M, Wang W, Wang P, et al. Fatigue behavior and mechanism of FV520B-I in ultrahigh cycle regime. Procedia Materials Science, 2014, 3: 2035–2041
Zhang Y, Xu B, Wang H, et al. An experimental analysis of fatigue behavior of welded impeller made by FV520B stainless steel in over-speed preloading process. Engineering Failure Analysis, 2016, 59: 111–121
Chu Q, Zhang M, Li J. Failure analysis of impeller made of FV520B martensitic precipitated hardening stainless steel. Engineering Failure Analysis, 2013, 34(1): 501–510
Wang S, Wu Y, Hua G, et al. Study on new correction method of S-N curve for metallic material. Hot Working Technology, 2011, 40 (8): 35–37 (in Chinese)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xu, L., Cao, H., Liu, H. et al. Assessment of fatigue life of remanufactured impeller based on FEA. Front. Mech. Eng. 11, 219–226 (2016). https://doi.org/10.1007/s11465-016-0394-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11465-016-0394-x