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Journal of Mechanical Science and Technology

, Volume 32, Issue 11, pp 5127–5132 | Cite as

Probabilistic fatigue-creep life reliability assessment of aircraft turbine disk

  • Kossi Mawuena Tomevenya
  • ShuJie Liu
Article
  • 11 Downloads

Abstract

Life consumption is one of the serious concerns for turbine disk performance and maintenance cost. The low cycle fatigue of turbine disk coming from the creep and their interaction has a direct influence on life and reliability of an aero engine. So, in this paper, the finite element analysis fatigue creep on Nickel base super alloy GH4133 turbine disk at 650 °C is computed based on the material properties, load and performance parameter of the low cycle fatigue as a random factor. The LCF Manson coffin model for cycles to failure (Nf ) and Larson Miller (Nc) are calculated. Damage fraction summation is used to calculate the low cycle fatigue creep life and fitted by two parameter Weibull distribution. Therefore, Monte Carlo simulation is used in random sampling from two parameter Weibull distribution to estimate the reliability assessment of turbine disk.

Keywords

Turbine disk Finite element analysis Fatigue creep life prediction Reliability analysis 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringDalian University of TechnologyDalian, LiaoningChina

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