| Continuum damage mechanics-based fatigue life prediction of L-PBF Ti-6Al-4V | |
Fu, Rui; Ling, Chao; Zheng, Liang; Zhong, Zheng; Hong YS(洪友士)
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| Corresponding Author | Zheng, Liang(icon_lzheng@hit.edu.cn) |
| Source Publication | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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| 2024-07-01 | |
| Volume | 273Pages:14 |
| ISSN | 0020-7403 |
| Abstract | The fatigue behavior and life of additively manufactured Ti-6Al-4V are very dependent on its heterogeneous microstructure, which in turn results from its fabrication process. In this paper, a fatigue damage model based on continuum damage mechanics was proposed to predict the high -cycle and very -high -cycle fatigue life at various stress ratios of Ti-6Al-4V fabricated by laser powder bed fusion (L-PBF). Model predictions were found to be in good agreement with experimental results for the different stress ratios considered. The model was found to be sufficiently robust to predict the fatigue life of other titanium alloys over a range of mean stress. The primary novelty is the incorporation of a tensorial formulation for anisotropic fatigue properties and the nonlinear effect of mean stress, which extended the model applicability to a wide range of stress ratio from -1 to 0.5. The results provide new insight into mean stress effects on fatigue of L-PBF Ti-6Al-4V up to the very -high -cycle fatigue regime. |
| Keyword | Fatigue life prediction L-PBF Ti-6Al-4V Continuum damage mechanics Very -high -cycle fatigue |
| DOI | 10.1016/j.ijmecsci.2024.109233 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001224362900001 |
| WOS Keyword | HIGH-CYCLE FATIGUE ; HIGH-STRENGTH ; CRACK INITIATION ; STRESS RATIO ; HEAT-TRANSFER ; BEHAVIOR ; STEEL ; MICROSTRUCTURE ; PERFORMANCE ; DEPOSITION |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | Guangdong Basic and Applied Basic Research Foundation[2023A1515012012] ; Guangdong Basic and Applied Basic Research Foundation[2024A1515011624] ; Shenzhen Municipal Science and Technology Innovation Council[GXWD2022081715183000] ; Shenzhen Municipal Science and Technology Innovation Council[GXWD20231128092642001] |
| Funding Organization | Guangdong Basic and Applied Basic Research Foundation ; Shenzhen Municipal Science and Technology Innovation Council |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Zheng, Liang |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95340 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Fu, Rui,Ling, Chao,Zheng, Liang,et al. Continuum damage mechanics-based fatigue life prediction of L-PBF Ti-6Al-4V[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2024,273:14. |
| APA | Fu, Rui,Ling, Chao,Zheng, Liang,Zhong, Zheng,&洪友士.(2024).Continuum damage mechanics-based fatigue life prediction of L-PBF Ti-6Al-4V.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,273,14. |
| MLA | Fu, Rui,et al."Continuum damage mechanics-based fatigue life prediction of L-PBF Ti-6Al-4V".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 273(2024):14. |
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