A case study of cracks in aeroengine compressor discs

Authors
Yan, H Zhong, PD Xi, NS Tao, CH
Citation
H. Yan et al., A case study of cracks in aeroengine compressor discs, ENG FAIL AN, 7(3), 2000, pp. 181-188
Categorie Soggetti
Mechanical Engineering
Journal title
ENGINEERING FAILURE ANALYSIS
ISSN journal
13506307 → ACNP
Volume
7
Issue
3
Year of publication
2000
Pages
181 - 188
Database
ISI
SICI code
1350-6307(200006)7:3<181:ACSOCI>2.0.ZU;2-9
Abstract
Cracks were found in four aeroengine compressor discs. These cracks initiat ed from holes in the discs and propagated in a radial direction. An analysi s of one disc is presented in this paper. The cracks are fatigue cracks fro m high alternating stress. The reason why cracks initiated at holes is that there were coarse machining marks and a resonance stress at the edge of th e hole. (C) 2000 Elsevier Science Ltd. All rights reserved.