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The in-service fatigue fracture mechanisms for the I-stage low-pressure compressor disk of the aircraft engine D30KU-154
  • Andrey Shanyavskiy,
  • Ilia Nikitin,
  • Alexander Nikitin
Andrey Shanyavskiy
FGBUN Institut avtomatizacii proektirovania Rossijskoj akademii nauk

Corresponding Author:[email protected]

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Ilia Nikitin
FGBUN Institut avtomatizacii proektirovania Rossijskoj akademii nauk
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Alexander Nikitin
FGBUN Institut avtomatizacii proektirovania Rossijskoj akademii nauk
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Abstract

This paper contains the in-service fatigue fracture analysis for the first stage low-pressure compressor disk of the aircraft engines D30KU-154. Based on the results of the fractographic investigation on collapsed compressor disks the fatigue crack initiation and propagation mechanisms were established. It is shown that the crack initiation in the rim part of the compressor disk is due to a high frequency loading that leads to very high cycle fatigue fracture. The total fatigue life of the compressor disk is determined by simultaneous action of low amplitude loading due to blades vibration, and high amplitude loading due to flight cycle (centrifugal forces). To study the in-service fracture of the compressor disk the numerical simulation of the stress state in the damaged zone under corresponding loading conditions was evaluated. The estimation of fatigue life and crack path predictions were performed based on the multi-regime fatigue fracture model proposed by the authors.
02 Mar 2022Submitted to Fatigue & Fracture of Engineering Materials & Structures
02 Mar 2022Submission Checks Completed
02 Mar 2022Assigned to Editor
03 Mar 2022Reviewer(s) Assigned
03 Apr 2022Review(s) Completed, Editorial Evaluation Pending
04 Apr 2022Editorial Decision: Revise Major
15 Jul 20221st Revision Received
15 Jul 2022Submission Checks Completed
15 Jul 2022Assigned to Editor
15 Jul 2022Reviewer(s) Assigned
26 Jul 2022Review(s) Completed, Editorial Evaluation Pending
02 Aug 2022Editorial Decision: Revise Major
29 Aug 20222nd Revision Received
15 Sep 2022Submission Checks Completed
15 Sep 2022Assigned to Editor
21 Sep 2022Reviewer(s) Assigned
29 Sep 2022Review(s) Completed, Editorial Evaluation Pending
30 Sep 2022Editorial Decision: Accept