| 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 Author | Xie, Liyang(lyxic@mail.ncu.edu.cn) ; Wang, Lei(leiwang@sau.edu.cn) |
| 2021-02-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF FATIGUE
 |
| ISSN | 0142-1123 |
| Volume | 143Pages:16 |
| Abstract | Considering 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. |
| Keyword | Multiaxial fatigue life prediction Aircraft aluminum alloy Critical plane approach Additional hardening Non-proportional loading |
| Funding Organization | Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| DOI | 10.1016/j.ijfatigue.2020.105993 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural 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 Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000597144800002 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158696 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xie, Liyang; Wang, Lei |
| Affiliation | 1.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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