Crack propagation behavior in metal matrix composites: A coupled nonlocal crystal plasticity and phase field modelling
文献类型：期刊论文
| 作者 | Xiong, Yukai1; Zhao, Jianfeng2; Zeng, Qinglei3; Yuan, Fuping4 ; Zhang, Xu1
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| 刊名 | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
 |
| 出版日期 | 2025-07-01 |
| 卷号 | 200页码:24 |
| 关键词 | Metal matrix composites Nonlocal plasticity Phase field method Crack propagation Geometrically necessary dislocations |
| ISSN号 | 0022-5096 |
| DOI | 10.1016/j.jmps.2025.106164 |
| 通讯作者 | Zhang, Xu(xzhang@swjtu.edu.cn) |
| 英文摘要 | The aluminum matrix composite is known for its lightweight and high strength, while its application is limited in various fields due to its low fracture strain. Configuring reinforcements in metal matrix composites (MMCs) is effective in improving the strength-ductility synergy of metallic materials; however, the underlying mechanisms have yet to be elucidated, and an optimizing strategy is to be explored. This study developed a coupled crystal plasticity (CP) and phase field (PF) model to investigate the toughening mechanisms of MMCs. The CP module incorporates a dislocation flux-based nonlocal model, while the PF module considers the influence of geometrically necessary dislocations (GNDs) on crack initiation and propagation. This coupled model effectively captures the initiation of cracks near the interface due to the accumulation of GNDs at the grain boundary and particle surface. Systematic simulations comprehensively reveal the effects of particle distribution and particle strength on the fracture strain. The findings suggest that arranging particles near grain boundaries improves ductility when particle damage is ignored. However, experimental observations reveal that particles undergo damage during deformation. Only when particle damage is incorporated, does the model accurately reflect the enhanced ductility in scenarios where particles are distributed within the grain interior aligning better with experimental findings. This research enhances our understanding of the damage mechanisms in MMCs and provides valuable insights into their microstructural design. |
| WOS关键词 | PARTICLE-SIZE ; VOLUME FRACTION ; MECHANICAL-PROPERTIES ; DISLOCATION DENSITY ; SICP/AL COMPOSITES ; FRACTURE-TOUGHNESS ; DAMAGE EVOLUTION ; GRAIN-BOUNDARIES ; STRENGTH ; MICROSTRUCTURE |
| 资助项目 | National Natural Science Foundation of China[12222209] ; National Natural Science Foundation of China[12192214] ; National Natural Science Foundation of China[52192591] ; Sichuan Science and Technology Program[2024NSFCJQ0068] |
| WOS研究方向 | Materials Science ; Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001487763200002 |
| 资助机构 | National Natural Science Foundation of China ; Sichuan Science and Technology Program |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101592]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Zhang, Xu |
| 作者单位 | 1.Southwest Jiaotong Univ, Sch Mech & Aerosp Engn, Sichuan Prov Key Lab Adv Struct Mat Mech Behav & S, Chengdu 611756, Peoples R China 2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Peoples R China 3.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiong, Yukai,Zhao, Jianfeng,Zeng, Qinglei,et al. Crack propagation behavior in metal matrix composites: A coupled nonlocal crystal plasticity and phase field modelling[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2025,200:24. |
| APA | Xiong, Yukai,Zhao, Jianfeng,Zeng, Qinglei,Yuan, Fuping,&Zhang, Xu.(2025).Crack propagation behavior in metal matrix composites: A coupled nonlocal crystal plasticity and phase field modelling.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,200,24. |
| MLA | Xiong, Yukai,et al."Crack propagation behavior in metal matrix composites: A coupled nonlocal crystal plasticity and phase field modelling".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 200(2025):24. |
入库方式： OAI收割
来源：力学研究所
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