Bioinspired Strategy for Controlling Crack Network Morphology on Curved Films
文献类型：期刊论文
| 作者 | Chu, Shiyuan3; Li, Shuang3; Lan YQ(蓝昱群)2; Bai, Jinshuai3; Feng, X-Qiao1,3 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2025-08-04 |
| 页码 | 11 |
| 关键词 | biomimetics film fragmentation peridynamics scaling law |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.202514054 |
| 通讯作者 | Feng, Xi-Qiao(fengxq@tsinghua.edu.cn) |
| 英文摘要 | Fragmentation of films is not only a widely observed failure mode in engineering but can also be harnessed to modulate the performance of functional devices such as flexible sensors, nanofluidic channels, and lithographic templates. Both the sizes and geometry of fragments may influence the performance of these devices. However, existing strategies are limited to overall adjustments of fragment sizes and geometry in net-like fragmentation across the entire films, while programming these characteristics in localized areas remains a challenge. Inspired by cracking patterns observed in animal skins, a curvature-mediated strategy is proposed to regulate the crack network morphology on curved films. Peridynamic simulations and experiments reveal that cracks hierarchically form in thin films as substrate expansion increases, a process explained by a hierarchical shear-lag model. Furthermore, a unified scaling law demonstrates that increasing curvature radius reduces the fragment size while increasing the number of fragment edges. This bionic strategy offers a promising method to regulate conductive pathways in thin films, providing a potential approach for the fabrication of programmable functional electronic devices. |
| 分类号 | 一类 |
| WOS关键词 | THERMAL BARRIER COATINGS ; PATTERNS ; TRANSPARENT ; FRACTURE ; SURFACE |
| 资助项目 | National Natural Science Foundation of China ; [12032014] ; [T2488101] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001543676200001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Feng, XiQiao |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/102208]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Mechano X Inst, AML, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Tsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, AML, Beijing 100084, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chu, Shiyuan,Li, Shuang,Lan YQ,et al. Bioinspired Strategy for Controlling Crack Network Morphology on Curved Films[J]. ADVANCED FUNCTIONAL MATERIALS,2025:11. |
| APA | Chu, Shiyuan,Li, Shuang,蓝昱群,Bai, Jinshuai,&Feng, X-Qiao.(2025).Bioinspired Strategy for Controlling Crack Network Morphology on Curved Films.ADVANCED FUNCTIONAL MATERIALS,11. |
| MLA | Chu, Shiyuan,et al."Bioinspired Strategy for Controlling Crack Network Morphology on Curved Films".ADVANCED FUNCTIONAL MATERIALS (2025):11. |
入库方式： OAI收割
来源：力学研究所
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