A crystal plasticity-based approach for creep-fatigue life prediction and damage evaluation in a nickel-based superalloy

Kai Shang Li, Run Zi Wang, Guang Jian Yuan, Shun Peng Zhu, Xian Cheng Zhang, Shan Tung Tu, Hideo Miura

研究成果: Article査読

3 被引用数 (Scopus)

抄録

A numerical process based on crystal plasticity finite element (CPFE) was implemented to predict creep-fatigue crack initiation life. CPFE-based model can describe the macroscopic cyclic deformation and reveal grain-level damage mechanism. A new life prediction approach was then constructed by introducing fatigue and creep indicator parameters. Furthermore, a series of strain-controlled creep-fatigue tests in GH4169 superalloy at 650℃ were used to validate predicted accuracy of this model, where most of the data points lied within ±1.5 error band. Finally, a potential methodology for conservative creep-fatigue life evaluation was provided by flexible creep-fatigue damage summation rule in engineering applications.

本文言語English
論文番号106031
ジャーナルInternational Journal of Fatigue
143
DOI
出版ステータスPublished - 2021 2

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 産業および生産工学

フィンガープリント

「A crystal plasticity-based approach for creep-fatigue life prediction and damage evaluation in a nickel-based superalloy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル