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A new multiaxial fatigue life prediction model for aircraft aluminum alloy
Zhao, Bingfeng1,2; Xie, Liyang1,2; Wang, Lei3; Hu, Zhiyong1; Zhou, Song3; Bai, Xin4
Corresponding AuthorXie, Liyang(lyxic@mail.ncu.edu.cn) ; Wang, Lei(leiwang@sau.edu.cn)
2021-02-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume143Pages:16
AbstractConsidering the frequent failure of aircraft caused by the multiaxial fatigue damage, it is very necessary to develop a reliable mathematical model to predict the multiaxial fatigue life for aircraft aluminum alloy. In our study, a new multiaxial fatigue life prediction model was proposed for both thin-walled tubular and notched specimens. In presented model, a new characteristic plane (subcritical plane) was defined to describe the particularity of additional cyclic hardening under non-proportional loading condition. On the new defined subcritical plane, a corresponding damage parameter containing the effect of additional hardening was also built, by which the dynamic path of stress spindle, combining material property and loading environment, was fully analysed. Finally, in order to verify the effectiveness of the new model for the multiaxial fatigue life prediction of aircraft aluminum alloy, multiaxial fatigue experiment for 2A12 aluminum alloy in four types of fatigue specimens was employed for the material fatigue failure simulation of the aircraft. Through the comparison result with three traditional models, it was evident the stability and accuracy of the new proposed model were much superior to those of the other three traditional models.
KeywordMultiaxial fatigue life prediction Aircraft aluminum alloy Critical plane approach Additional hardening Non-proportional loading
Funding OrganizationNatural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI10.1016/j.ijfatigue.2020.105993
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[52005087] ; Natural Science Foundation of China[U1708255] ; Natural Science Foundation of China[51775355] ; Fundamental Research Funds for the Central Universities
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000597144800002
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158696
Collection中国科学院金属研究所
Corresponding AuthorXie, Liyang; Wang, Lei
Affiliation1.Northeastern Univ, Shenyang 110819, Peoples R China
2.Minist Educ, Key Lab Vibrat & Control Aeroprop Syst, Shenyang 110819, Peoples R China
3.Shenyang Aerosp Univ, Shenyang 110062, Peoples R China
4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Bingfeng,Xie, Liyang,Wang, Lei,et al. A new multiaxial fatigue life prediction model for aircraft aluminum alloy[J]. INTERNATIONAL JOURNAL OF FATIGUE,2021,143:16.
APA Zhao, Bingfeng,Xie, Liyang,Wang, Lei,Hu, Zhiyong,Zhou, Song,&Bai, Xin.(2021).A new multiaxial fatigue life prediction model for aircraft aluminum alloy.INTERNATIONAL JOURNAL OF FATIGUE,143,16.
MLA Zhao, Bingfeng,et al."A new multiaxial fatigue life prediction model for aircraft aluminum alloy".INTERNATIONAL JOURNAL OF FATIGUE 143(2021):16.
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