| Multiscale designs of the chitinous nanocomposite of beetle horn towards an enhanced biomechanical functionality | |
| Zhang, Jian1,2; Tan, Guoqi2,3; Zhang, Mingyang2,3; Jiao, Da2; Zhu, Yankun2; Wang, Shaogang2; Liu, Zengqian2,3; Liu, Dexue1; Zhang, Zhefeng2,3 | |
| Corresponding Author | Liu, Zengqian(zengqianliu@imr.ac.cn) ; Liu, Dexue(dxliu@lut.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 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 |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.jmbbm.2018.12.028 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51871216] ; National Natural Science Foundation of China[51331007] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Biomedical ; Materials Science, Biomaterials |
| WOS ID | WOS:000458942100032 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132001 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Zengqian; Liu, Dexue; Zhang, Zhefeng |
| Affiliation | 1.Lanzhou Univ Technol, State Key Lab Adv Nonferrous Mat, Lanzhou 730050, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang 110016, Liaoning, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| 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. |
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