Knowledge Management System Of Institute of metal research，CAS
| Multiscale designs of the chitinous nanocomposite of beetle horn towards an enhanced biomechanical functionality | |
| Zhang, Jian; Tan, Guoqi; Zhang, Mingyang; Jiao, Da; Zhu, Yankun; Wang, Shaogang; Liu, Zengqian; Liu, Dexue; Zhang, Zhefeng | |
| 2019-03-01 | |
| Source Publication | JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
 |
| ISSN | 1751-6161 |
| Volume | 91Pages:278-286 |
| Abstract | Operating mainly as a type of weapon, the beetle horn develops an impressive mechanical efficiency based on chitinous materials to maximize the injury to opponent and simultaneously minimize the damage to itself and underlying brain under stringent loading conditions. Here the cephalic horn of the beetle Allomyrina dichotoma is probed using multiscale characterization combined with finite element simulations to explore the origins of its biomechanical functionality from the perspective of materials science. The horn is revealed to be highly regulated from the macroscopic shape, geometry, and connection with the body to the meso- and microscopic architecture, moisture content, and chemical and structural characteristics. Varying kinds of gradients are integrated at all length-scales. Such designs are demonstrated to benefit the mechanical performance by mitigating stress concentrations, retarding crack propagation, and modulating local properties to better adapt to stress. Enhanced rigidity, robustness and stability are additionally generated from the constrained flexibility endowed by the nanocomposite plywood structure through the reorientation of chitin nanofibrils within the proteinaceous matrix. These findings shed light on the intriguing materials-design strategies of nature in creating synergy of offence and persistence. They may even offer inspiration for the synthesis of high-performance materials and structures, in particular beams to resist bending and torsion. |
| Keyword | Biomechanics Gradient Structural hierarchy Nanocomposite Plywood structure |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000458942100032 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/81323 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Zhang, Jian,Tan, Guoqi,Zhang, Mingyang,et al. Multiscale designs of the chitinous nanocomposite of beetle horn towards an enhanced biomechanical functionality[J]. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,2019,91:278-286. |
| APA | Zhang, Jian.,Tan, Guoqi.,Zhang, Mingyang.,Jiao, Da.,Zhu, Yankun.,...&Zhang, Zhefeng.(2019).Multiscale designs of the chitinous nanocomposite of beetle horn towards an enhanced biomechanical functionality.JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS,91,278-286. |
| MLA | Zhang, Jian,et al."Multiscale designs of the chitinous nanocomposite of beetle horn towards an enhanced biomechanical functionality".JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 91(2019):278-286. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment