Crack behavior and strength-ductility trade-off in particle-reinforced gradient composites: A crystal plasticity-phase field study
文献类型：期刊论文
| 作者 | Xiong, Yukai2; Yang, Li1; Kan, Qianhua2; Liu, Jinling2; Yuan, Fuping3; Zhang, Xu2 |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2025-09-17 |
| 卷号 | 68期号:10页码:16 |
| 关键词 | gradient material crystal plasticity phase field crack propagation |
| ISSN号 | 1674-7321 |
| DOI | 10.1007/s11431-025-3016-5 |
| 通讯作者 | Zhang, Xu(xzhang@swjtu.edu.cn) |
| 英文摘要 | Gradient materials offer a promising pathway to balance strength and ductility through controlled microstructural heterogeneity. In this work, we develop a coupled crystal plasticity-phase field model to investigate the deformation and ductile fracture behavior of gradient-structured metallic composites. The model incorporates grain size-dependent plasticity and simulates crack evolution driven by strain energy. Simulation results show that in pure matrix systems with grain size gradients, increasing the overall grain size leads to reduced strength but improved ductility. This strength-ductility trade-off arises from the interaction between strain delocalization in coarse-grained regions and hardening in fine-grained regions. In particle-reinforced systems, the presence of particles alters stress distribution: smaller particles promote more uniform stress fields and delay damage initiation, whereas larger particles intensify stress and strain energy concentration near fine-grained areas, accelerating crack nucleation and propagation. Crack paths in gradient composites become more tortuous as cracks are forced to bypass particles. The results reveal the critical role of tailoring both grain and particle gradients in regulating the strength-ductility synergy. This study provides a quantitative tool and mechanistic insight into damage evolution in heterogeneous microstructures. |
| WOS关键词 | FUNCTIONALLY GRADED MATERIALS ; DAMAGE ; WEAR ; METALS ; MODEL ; BRITTLE ; SIZE ; MAIN |
| 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] ; Material Digital R&D Center, China Iron & Steel Research Institute (CISRI) |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001574873400001 |
| 资助机构 | National Natural Science Foundation of China ; Sichuan Science and Technology Program ; Material Digital R&D Center, China Iron & Steel Research Institute (CISRI) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/104068]  |
| 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.Res Inst Adv Mat Shenzhen Co Ltd, Shenzhen 518045, Peoples R China 2.Southwest Jiaotong Univ, Sch Mech & Aerosp Engn, Sichuan Prov Key Lab Adv Struct Mat Mech Behav, Chengdu 611756, Peoples R China 3.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,Yang, Li,Kan, Qianhua,et al. Crack behavior and strength-ductility trade-off in particle-reinforced gradient composites: A crystal plasticity-phase field study[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2025,68(10):16. |
| APA | Xiong, Yukai,Yang, Li,Kan, Qianhua,Liu, Jinling,Yuan, Fuping,&Zhang, Xu.(2025).Crack behavior and strength-ductility trade-off in particle-reinforced gradient composites: A crystal plasticity-phase field study.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,68(10),16. |
| MLA | Xiong, Yukai,et al."Crack behavior and strength-ductility trade-off in particle-reinforced gradient composites: A crystal plasticity-phase field study".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 68.10(2025):16. |
入库方式： OAI收割
来源：力学研究所
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