A fracture mechanics model for gradient-structured materials
文献类型：期刊论文
| 作者 | Li, X. T.1; Zhao, J. F.2; Zhang, Z. J.1,3; Zhang, P.1,3; Zhang, Z. F.1,3 |
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2025-01-23 |
| 卷号 | 313页码:10 |
| 关键词 | Gradient structure Fracture mechanics Toughness Grain size Crack growth |
| ISSN号 | 0013-7944 |
| DOI | 10.1016/j.engfracmech.2024.110688 |
| 通讯作者 | Li, X. T.(xiaotaoli@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | Designing gradient structures effectively regulates material properties, achieving an optimal balance between strength and toughness, and enhancing material safety in service. However, there is no a good model for gradient-structured materials (GSM) complicates establishing the relationship between gradient parameters and toughness. This study takes gradient nano-grained materials as an example and for the first time a fracture mechanics model is established. The results obtained by the fracture mechanics model aligns well with the experimental observations and finite element simulations, confirming its effectiveness. It is revealed that the fracture resistance is higher when the crack propagates from coarse-grained to nano-grained (CG-to-NG) structures, while becomes lower for the NG-to-CG structures. Meanwhile, it is interesting to find that a smaller grain size gradient exhibits a higher toughness. The fracture mechanics model provides a qualitative analysis of the gradient structure's effect on toughness, offering theoretical guidance for the toughening design of GSM. |
| 资助项目 | National Natural Science Foundation of China[52401122] ; National Natural Science Foundation of China[52130002] ; National Natural Science Foundation of China[52321001] ; National Natural Science Foundation of China[52322105] ; National Natural Science Foundation of China[52261135634] ; KC Wong Education Foundation[GJTD-2020-09] ; International Joint Research Project of CAS[172GJHZ2022030MI] ; IMR Outstanding Scholar Position[E451A804] ; IMR Innovation Fund[2023-ZD01] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001370566800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; KC Wong Education Foundation ; International Joint Research Project of CAS ; IMR Outstanding Scholar Position ; IMR Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, X. T.; Zhang, Z. F. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X. T.,Zhao, J. F.,Zhang, Z. J.,et al. A fracture mechanics model for gradient-structured materials[J]. ENGINEERING FRACTURE MECHANICS,2025,313:10. |
| APA | Li, X. T.,Zhao, J. F.,Zhang, Z. J.,Zhang, P.,&Zhang, Z. F..(2025).A fracture mechanics model for gradient-structured materials.ENGINEERING FRACTURE MECHANICS,313,10. |
| MLA | Li, X. T.,et al."A fracture mechanics model for gradient-structured materials".ENGINEERING FRACTURE MECHANICS 313(2025):10. |
入库方式： OAI收割
来源：金属研究所
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