| 题名 | Modulating the fracture behavior of interface cracks via electric field gradient in flexoelectric solids |
| 作者 | |
| 通讯作者 | Tian, Xinpeng |
| 发表日期 | 2024-11-08
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| DOI | |
| 发表期刊 | |
| ISSN | 0013-7944
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| EISSN | 1873-7315
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| 卷号 | 310 |
| 摘要 | Interface cracks seriously affect the performance and service life of layered electronic devices. At nanoscale, the electric field concentration can be generated at the tip of insulating cracks by solely applying a uniform electric field loading, resulting in a large electric field gradient and thus inducing a significant converse flexoelectric effect. The deformation generated by the converse flexoelectric effect is expected to achieve crack shielding, however, its mechanism is still not clear. In this paper, the role of electric field gradients on interface crack behavior is studied by the collocation mixed finite element method (MFEM) and the J-integral. The result shows that the electric field gradient generated by a uniform electric displacement loading can reduce the J-integral of crack tips, achieving crack shielding. The result provides new ideas for the study of failure assessment, nanoscale fracture experiment and others. |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 第一
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| 资助项目 | National Natural Science Foundation of China["12202155","12172142"]
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| WOS研究方向 | Mechanics
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| WOS类目 | Mechanics
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| WOS记录号 | WOS:001319904700001
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| 出版者 | |
| 来源库 | Web of Science
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| 引用统计 | |
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/834339 |
| 专题 | 工学院_材料科学与工程系 |
| 作者单位 | 1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Aerosp Engn, Dept Engn Mech, Wuhan 430074, Hubei, Peoples R China |
| 第一作者单位 | 材料科学与工程系 |
| 第一作者的第一单位 | 材料科学与工程系 |
| 推荐引用方式 GB/T 7714 |
Xu, Mengkang,Tian, Xinpeng,Deng, Qian,et al. Modulating the fracture behavior of interface cracks via electric field gradient in flexoelectric solids[J]. ENGINEERING FRACTURE MECHANICS,2024,310.
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| APA |
Xu, Mengkang,Tian, Xinpeng,Deng, Qian,&Zhou, Haiyang.(2024).Modulating the fracture behavior of interface cracks via electric field gradient in flexoelectric solids.ENGINEERING FRACTURE MECHANICS,310.
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| MLA |
Xu, Mengkang,et al."Modulating the fracture behavior of interface cracks via electric field gradient in flexoelectric solids".ENGINEERING FRACTURE MECHANICS 310(2024).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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