IMECH-IR  > 先进制造工艺力学重点实验室
Experimental and numerical study of crack damage under variable amplitude thermal fatigue for compacted graphite iron EN-GJV-450
Pan SN(潘斯宁); Yu G(虞钢); Li SX(李少霞); He XL(何秀丽); Chen R(陈茹)
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2018-08-01
Volume113Pages:184-192
ISSN0142-1123
AbstractFatigue crack under variable amplitude thermal cycles is a common failure in combustion chamber components, proposing great challenges during the temperature reproduction of actual working condition. In this paper, this complicated thermal cycle was realized with pulsed laser experimentally, causing two kinds of damage such as the low cycle thermal fatigue (LCF) and high cycle thermal fatigue (HCF). A numerical model was developed to simulate the temperature, stress and strain under variable amplitude thermal cycles. The results showed that, there was good agreement between the measured temperature curve and the simulated results with different crack parameters. The observed crack depth at different cycles was consistent with the predicted ones. Furthermore, the mechanism of crack evolution under variable amplitude thermal fatigue was discussed. The calculated thermal-structural interaction depth of LCF thermal cycle was found to be larger than the HCF thermal cycle. The effect of LCF thermal loadings was associated with the initiation of major cracks, while the failure related to the superimposed HCF action was the acceleration of crack growth with a surface wedging process. This paper provides comprehensive experimental and numerical insights into the thermal damage process under variable amplitude thermal loading, showing a significant engineering value for failure analysis and design optimization of combustion chamber components.
KeywordCrack damage Variable amplitude thermal fatigue Surface wedging process Cast iron Combustion chamber
DOI10.1016/j.ijfatigue.2018.04.010
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000437373300017
WOS KeywordDIESEL-ENGINE ; HIGH-CYCLE ; PULSED-LASER ; YAG-LASER ; MECHANISMS ; CYLINDER ; BEHAVIOR ; STEEL
WOS Research AreaEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS SubjectEngineering ; Materials Science
Funding OrganizationNational Natural Science Foundation of China [11272316, 11502269, 11672304, 11272317] ; Chinese Academy of Sciences [yz201636]
Classification一类
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77843
Collection先进制造工艺力学重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Pan SN,Yu G,Li SX,et al. Experimental and numerical study of crack damage under variable amplitude thermal fatigue for compacted graphite iron EN-GJV-450[J]. INTERNATIONAL JOURNAL OF FATIGUE,2018,113:184-192.
APA 潘斯宁,虞钢,李少霞,何秀丽,&陈茹.(2018).Experimental and numerical study of crack damage under variable amplitude thermal fatigue for compacted graphite iron EN-GJV-450.INTERNATIONAL JOURNAL OF FATIGUE,113,184-192.
MLA 潘斯宁,et al."Experimental and numerical study of crack damage under variable amplitude thermal fatigue for compacted graphite iron EN-GJV-450".INTERNATIONAL JOURNAL OF FATIGUE 113(2018):184-192.
Files in This Item: Download All
File Name/Size DocType Version Access License
IrJ2018229.pdf(2850KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[潘斯宁]'s Articles
[虞钢]'s Articles
[李少霞]'s Articles
Baidu academic
Similar articles in Baidu academic
[潘斯宁]'s Articles
[虞钢]'s Articles
[李少霞]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[潘斯宁]'s Articles
[虞钢]'s Articles
[李少霞]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IrJ2018229.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.