A fatigue damage accumulation model for reliability analysis of engine components under combined cycle loadings

authored by: Peng Yue, Juan Ma, Changhu Zhou, Hao Jiang, Peter Wriggers
Abstract: Rotor components of an aircraft engine in service are usually subjected to combined high and low cycle fatigue (CCF) loadings. In this work, combining with the load spectrum of CCF, a modified damage accumulation model for CCF life prediction of turbine blades is first put forward to take into account the effects of load consequence and load interaction caused by high-cycle fatigue (HCF) loads and low-cycle fatigue (LCF) loads under CCF loading conditions. The predicted results demonstrate that the proposed model presents a higher prediction accuracy than Miner, Manson-Halford model does. Moreover, to evaluate the fatigue reliability of rotor components, reliability model with the failure mode of CCF is proposed on the basis of the stress-strength interference method when considering the strength degeneration, and its results show that the reliability model with CCF is more suitable for aero-engine components than that with the failure mode of single fatigue.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Xidian University
Type: Article
Journal: Fatigue and Fracture of Engineering Materials and Structures
Volume: 43
Pages: 1880-1892
No. of pages: 13
ISSN: 8756-758X
Publication date: 01.06.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Mechanics of Materials, Mechanical Engineering
Electronic version(s): https://doi.org/10.1111/ffe.13246 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{064d56dbf6ca4ce9aaf19dde4771af10,
title = "A fatigue damage accumulation model for reliability analysis of engine components under combined cycle loadings",
abstract = "Rotor components of an aircraft engine in service are usually subjected to combined high and low cycle fatigue (CCF) loadings. In this work, combining with the load spectrum of CCF, a modified damage accumulation model for CCF life prediction of turbine blades is first put forward to take into account the effects of load consequence and load interaction caused by high-cycle fatigue (HCF) loads and low-cycle fatigue (LCF) loads under CCF loading conditions. The predicted results demonstrate that the proposed model presents a higher prediction accuracy than Miner, Manson-Halford model does. Moreover, to evaluate the fatigue reliability of rotor components, reliability model with the failure mode of CCF is proposed on the basis of the stress-strength interference method when considering the strength degeneration, and its results show that the reliability model with CCF is more suitable for aero-engine components than that with the failure mode of single fatigue.",
keywords = "combined cycle fatigue, fatigue damage accumulation, life prediction, reliability analysis, turbine blades",
author = "Peng Yue and Juan Ma and Changhu Zhou and Hao Jiang and Peter Wriggers",
note = "Funding Information: The authors gratefully acknowledge the support of Natural Science Foundation of China (Grant No.11572233), Pre‐research Foundation (Grant No.61400020106), and Advance Research Fund (Grant No. FY15018040001) to the projects.",
year = "2020",
month = jun,
day = "1",
doi = "10.1111/ffe.13246",
language = "English",
volume = "43",
pages = "1880--1892",
journal = "Fatigue and Fracture of Engineering Materials and Structures",
issn = "8756-758X",
publisher = "Wiley-Blackwell Publishing Ltd",
number = "8",
}