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Framework of Fatigue Crack Growth Life Monitoring for Nickel-based Superalloy GH4169 Based on Thermodynamic Entropy Generation

  • Shuyang Xia
  • , Shuiting Ding
  • , Zhenlei Li
  • , Shaochen Bao
  • , Bolin Li
  • , Liangliang Zuo
  • , Guo Li*
  • *Corresponding author for this work
  • Beihang University
  • Tianmushan Laboratory

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A framework to monitor the life of the fatigue crack growth (FCG) of the nickel-based superalloy GH4169 based on thermodynamic entropy generation is proposed in this paper. A finite element analysis method combined with ABAQUS and FRANC3D was established to simulate FCG behavior, and a Python program was written to calculate the entropy generation of the chosen thermodynamic system. The results illustrated that the fatigue fracture entropy (FFE) can be treated as a constant that is dependent on temperature. A damage model based on the degeneration-entropy generation theorem was proposed to estimate the life consumption in the FCG process. Finally, the FCG tests were used to compare the estimate from the damage model, and the results showed that this damage model can provide a reliable life monitor of FCG process.

Original languageEnglish
Title of host publicationProceedings - 2023 14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023
EditorsLiming Ren, W. Eric Wong, Hailong Cheng, Xiaopeng Li, Shu Wang, Kanglun Liu, Ruifeng Li
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1204-1209
Number of pages6
ISBN (Electronic)9798350329988
DOIs
StatePublished - 2023
Event14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023 - Urumqi, China
Duration: 26 Aug 202329 Aug 2023

Publication series

NameProceedings - 2023 14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023

Conference

Conference14th International Conference on Reliability, Maintainability and Safety, ICRMS 2023
Country/TerritoryChina
CityUrumqi
Period26/08/2329/08/23

Keywords

  • GH4169
  • damage model
  • fatigue crack growth
  • thermodynamic entropy generation

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