Continuum damage mechanics-based fatigue life prediction of L-PBF Ti-6Al-4V
文献类型：期刊论文
| 作者 | Fu, Rui; Ling, Chao; Zheng, Liang; Zhong, Zheng; Hong YS(洪友士)
|
| 刊名 | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 273页码:14 |
| 关键词 | Fatigue life prediction L-PBF Ti-6Al-4V Continuum damage mechanics Very -high -cycle fatigue |
| ISSN号 | 0020-7403 |
| DOI | 10.1016/j.ijmecsci.2024.109233 |
| 通讯作者 | Zheng, Liang(icon_lzheng@hit.edu.cn) |
| 英文摘要 | 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. |
| 分类号 | 一类 |
| WOS关键词 | HIGH-CYCLE FATIGUE ; HIGH-STRENGTH ; CRACK INITIATION ; STRESS RATIO ; HEAT-TRANSFER ; BEHAVIOR ; STEEL ; MICROSTRUCTURE ; PERFORMANCE ; DEPOSITION |
| 资助项目 | 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] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001224362900001 |
| 资助机构 | Guangdong Basic and Applied Basic Research Foundation ; Shenzhen Municipal Science and Technology Innovation Council |
| 其他责任者 | Zheng, Liang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95339]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：力学研究所
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