On the fracture mechanisms of nacre: Effects of structural orientation
文献类型：期刊论文
| 作者 | Jiao, D.1; Qu, R. T.1,2; Weng, Z. Y.1; Liu, Z. Q.1,2; Zhang, Z. F.1,2 |
| 刊名 | JOURNAL OF BIOMECHANICS
 |
| 出版日期 | 2019-11-11 |
| 卷号 | 96页码:8 |
| 关键词 | Fracture Lamellar structure Structural orientation Nacre Biomechanics |
| ISSN号 | 0021-9290 |
| DOI | 10.1016/j.jbiomech.2019.109336 |
| 通讯作者 | Liu, Z. Q.(zengqianliu@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The nacre of mollusk shells is distinguished by an exceptional mechanical efficiency which is derived essentially from its lamellar structure and frequently acts as a source of inspiration for the development of biomimetic materials. The structure and mechanical properties of nacre have been intensively investigated with a special focus on its toughening strategies; nevertheless, the fracture mechanisms, more specifically the critical stress/strain conditions for the failure of nacre, and the effects of structural orientation and hydration state remain largely unexplored. Here uniaxial compression tests were performed on nacre of both dry and hydrated states with different off-axis angles, i.e., the inclination of loading axis with respect to the lamellar structure, ranging from 0 degrees to 90 degrees. The mechanical properties and fracture characteristics of nacre and their dependences on the structural orientation and hydration state were elucidated in terms of mechanics behind failure. Quantitative relationships were established between the mechanical properties and off-axis angle based on different failure criteria. The competition between the fracture modes of fragmentation and shearing was quantified by comparing their respective driving force and resistance on the interfacial plane. This study may aid the understanding on the mechanical behavior of nacre and nacre-inspired synthetic materials and promote a better replication of the underlying design principles of nacre in man-made systems. (C) 2019 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[51871216] ; National Natural Science Foundation of China[51501190] |
| WOS研究方向 | Biophysics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000496861300004 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/137082]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Z. Q.; Zhang, Z. F. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiao, D.,Qu, R. T.,Weng, Z. Y.,et al. On the fracture mechanisms of nacre: Effects of structural orientation[J]. JOURNAL OF BIOMECHANICS,2019,96:8. |
| APA | Jiao, D.,Qu, R. T.,Weng, Z. Y.,Liu, Z. Q.,&Zhang, Z. F..(2019).On the fracture mechanisms of nacre: Effects of structural orientation.JOURNAL OF BIOMECHANICS,96,8. |
| MLA | Jiao, D.,et al."On the fracture mechanisms of nacre: Effects of structural orientation".JOURNAL OF BIOMECHANICS 96(2019):8. |
入库方式： OAI收割
来源：金属研究所
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