| A fatigue limit evaluation method based on plastic strain incremental energy dissipation theory | |
Zu, Ruili; Zhu, Yingbin1; Huang XF(黄先富) ; Huang, Yao; Zhou, Yizhou3; Zhao, Jiaye4; Liu, Zhanwei
| |
| Source Publication | ENGINEERING FRACTURE MECHANICS
 |
| 2023-04-14 | |
| Volume | 282Pages:109173 |
| ISSN | 0013-7944 |
| Abstract | Metallic materials frequently undergo fatigue failure during long term service. Therefore, the study of fatigue performance detection methods with high precision and wide application ranges is crucial to reduce fatigue failures and accidents of materials and structures. In this study, a plastic strain incremental energy dissipation theory (PSIEDT) is established, and a general expression for fatigue limit is derived with the starting point of the plastic strain increment. Taking 42CrMo4 steel as an example, and its temperature and deformation fields are obtained synchronously using infrared thermal imaging and digital image correlation. Its fatigue limit is evaluated using the energy dissipation theory based on the plastic strain increment. The results show that the relative error between the fatigue limit measurement accuracies of the developed method and the method proposed by Luong is 1.64 %. The relative error of the fatigue limit obtained for the local damage region is only 0.18 %, which has a high measurement accuracy. At the microscopic level, the onset of plastic strain corresponds to a change in the microstructure of the material from reversible deformation (viscoelastic) to permanent deformation (plasticity). Therefore, the strain measurements have higher sensitivity than the temperature measurements. Considering the limited heat release of many materials, the new method has a wide application range, can rapidly obtain material fatigue properties, and has good engineering application prospects. |
| Keyword | Fatigue limit Plastic strain incremental energy dissipation theory Infrared thermal imaging Digital image correlation |
| DOI | 10.1016/j.engfracmech.2023.109173 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000951493300001 |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Organization | National Natural Science Foundation of China [11972084] ; National Science and Technology Major Project [2017 VI 0003 0073] |
| Classification | 一类 |
| Ranking | 3 |
| Contributor | Liu, ZW (corresponding author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91801 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Inst Flexible Elect Technol THU, Jiaxing 314006, Zhejiang, Peoples R China |
| Recommended Citation GB/T 7714 | Zu, Ruili,Zhu, Yingbin,Huang XF,et al. A fatigue limit evaluation method based on plastic strain incremental energy dissipation theory[J]. ENGINEERING FRACTURE MECHANICS,2023,282:109173.Rp_Au:Liu, ZW (corresponding author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China. |
| APA | Zu, Ruili.,Zhu, Yingbin.,黄先富.,Huang, Yao.,Zhou, Yizhou.,...&Liu, Zhanwei.(2023).A fatigue limit evaluation method based on plastic strain incremental energy dissipation theory.ENGINEERING FRACTURE MECHANICS,282,109173. |
| MLA | Zu, Ruili,et al."A fatigue limit evaluation method based on plastic strain incremental energy dissipation theory".ENGINEERING FRACTURE MECHANICS 282(2023):109173. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa098.pdf（7033KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment