Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature

The dovetail attachment between the turbine blade and disk for an aero-engine operates under varying centrifugal load and vibration at elevated temperatures. The fretting fatigue is prone to occur at the contact surface of the dovetail attachment. This paper investigated the fretting fatigue behavio...

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Autores principales:	Zhen Qu, Kaicheng Liu, Baizhi Wang, Zhiying Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	fretting fatigue dovetail contact finite element method partition characteristics Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/787be684c51b42b39bebeeabe770f52d
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spelling	oai:doaj.org-article:787be684c51b42b39bebeeabe770f52d2021-11-11T15:00:39ZFretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature10.3390/app112199132076-3417https://doaj.org/article/787be684c51b42b39bebeeabe770f52d2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9913https://doaj.org/toc/2076-3417The dovetail attachment between the turbine blade and disk for an aero-engine operates under varying centrifugal load and vibration at elevated temperatures. The fretting fatigue is prone to occur at the contact surface of the dovetail attachment. This paper investigated the fretting fatigue behavior of the dovetail specimen at 630 °C through experiment and numerical simulation, in which the blade-like dovetail specimen is nickel-based single crystal superalloy DD10 while two fretting pads in contact with the dovetail specimen simulating the mortise of the disk are made of powder metallurgy FGH99. It is revealed from all the tests that the fracture induced by the fretting wear occurs at the upper edge area of the contact surface. The contact surface near the upper edge is more severely worn; hence, the phenomenon of partition on the worn contact surface can be observed, which is consistent with the fretting fatigue mechanism. Moreover, the calculated area of maximum contact pressure gradient through finite element method is in good agreement with the experimental position of the initial fretting fatigue cracks.Zhen QuKaicheng LiuBaizhi WangZhiying ChenMDPI AGarticlefretting fatiguedovetail contactfinite element methodpartition characteristicsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9913, p 9913 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	fretting fatigue dovetail contact finite element method partition characteristics Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	fretting fatigue dovetail contact finite element method partition characteristics Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Zhen Qu Kaicheng Liu Baizhi Wang Zhiying Chen Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
description	The dovetail attachment between the turbine blade and disk for an aero-engine operates under varying centrifugal load and vibration at elevated temperatures. The fretting fatigue is prone to occur at the contact surface of the dovetail attachment. This paper investigated the fretting fatigue behavior of the dovetail specimen at 630 °C through experiment and numerical simulation, in which the blade-like dovetail specimen is nickel-based single crystal superalloy DD10 while two fretting pads in contact with the dovetail specimen simulating the mortise of the disk are made of powder metallurgy FGH99. It is revealed from all the tests that the fracture induced by the fretting wear occurs at the upper edge area of the contact surface. The contact surface near the upper edge is more severely worn; hence, the phenomenon of partition on the worn contact surface can be observed, which is consistent with the fretting fatigue mechanism. Moreover, the calculated area of maximum contact pressure gradient through finite element method is in good agreement with the experimental position of the initial fretting fatigue cracks.
format	article
author	Zhen Qu Kaicheng Liu Baizhi Wang Zhiying Chen
author_facet	Zhen Qu Kaicheng Liu Baizhi Wang Zhiying Chen
author_sort	Zhen Qu
title	Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
title_short	Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
title_full	Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
title_fullStr	Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
title_full_unstemmed	Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature
title_sort	fretting fatigue experiment and finite element analysis for dovetail specimen at high temperature
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/787be684c51b42b39bebeeabe770f52d
work_keys_str_mv	AT zhenqu frettingfatigueexperimentandfiniteelementanalysisfordovetailspecimenathightemperature AT kaichengliu frettingfatigueexperimentandfiniteelementanalysisfordovetailspecimenathightemperature AT baizhiwang frettingfatigueexperimentandfiniteelementanalysisfordovetailspecimenathightemperature AT zhiyingchen frettingfatigueexperimentandfiniteelementanalysisfordovetailspecimenathightemperature
_version_	1718437900288262144

Fretting Fatigue Experiment and Finite Element Analysis for Dovetail Specimen at High Temperature

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