A framework to simulate the crack initiation and propagation in very-high-cycle fatigue of an additively manufactured AlSi10Mg alloy
文献类型：期刊论文
| 作者 | Sun JY(孙经雨); Qian GA(钱桂安) ; Li JH(李江华); Li, Ruiyang; Jian, Zhimo; Hong YS(洪友士); Berto, Filippo
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| 刊名 | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
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| 出版日期 | 2023-07 |
| 卷号 | 175页码:105293 |
| ISSN号 | 0022-5096 |
| 关键词 | Crystal plasticity Cohesive zone model Very-high-cycle fatigue Microstructure-sensitive fatigue Short crack growth |
| DOI | 10.1016/j.jmps.2023.105293 |
| 英文摘要 | Currently, no systematic approach exists to simulate the crack initiation and propagation process in very-high-cycle fatigue including the microstructure sensitivity. A combined crystal plasticity and cohesive zone model based computational framework is developed to simulate the defect -induced short crack growth of an additively manufactured AlSi10Mg alloy. The crystal plasticity formulation is used to model the anisotropic deformation in the grains. The accumulated plastic shear strain obtained by the crystal plasticity is introduced into the cohesive zone model as the crack initiation damage evolution criteria. The total damage is suggested to be divided into static damage, fatigue initiation damage and fatigue propagation damage. The framework can control the crack growth rate and the proportion of crack initiation damage in the total damage. Besides, an acceleration strategy is proposed to accelerate the computational efficiency for the very-high-cycle fatigue (VHCF). It provides an equivalence of loading cycles and the computational efficiency and accuracy are controlled by the acceleration factor. The internal defect induced short crack initiation and propagation of VHCF are investigated experimentally and simulated by the proposed framework. Experimental observations of tortuous crack paths and fine grain regions are reasonably well captured by the simulation. |
| 分类号 | 一类/力学重要期刊 |
| WOS研究方向 | WOS:000979954900001 |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [12002185, 12272377, 12072345, 11932020] |
| 其他责任者 | Sun, JY ; Qian, GA |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92218]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.(Berto Filippo) Norwegian Univ Sci & Technol NTNU Dept Mech & Ind Engn Richard Birkelands Vei 2b N-7491 Trondheim Norway 2.(Li Ruiyang) Guangxi Univ Coll Mech Engn Nanning 530004 Peoples R China 3.(Sun Jingyu, Qian Guian, Li Jianghua, Jian Zhimo, Hong Youshi) Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech LNM Beijing 100190 Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun JY,Qian GA,Li JH,et al. A framework to simulate the crack initiation and propagation in very-high-cycle fatigue of an additively manufactured AlSi10Mg alloy[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2023,175:105293. |
| APA | 孙经雨.,钱桂安.,李江华.,Li, Ruiyang.,Jian, Zhimo.,...&Berto, Filippo.(2023).A framework to simulate the crack initiation and propagation in very-high-cycle fatigue of an additively manufactured AlSi10Mg alloy.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,175,105293. |
| MLA | 孙经雨,et al."A framework to simulate the crack initiation and propagation in very-high-cycle fatigue of an additively manufactured AlSi10Mg alloy".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 175(2023):105293. |
入库方式： OAI收割
来源：力学研究所
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