Optimized Hierarchical Structure and Chemical Gradients Promote the Biomechanical Functions of the Spike of Mantis Shrimps

doi:10.1021/acsami.1c02867

	Optimized Hierarchical Structure and Chemical Gradients Promote the Biomechanical Functions of the Spike of Mantis Shrimps
	Li, Shan 1; Liu, Pan 2,3; Lin, Weiqin 1; Tian, Jie 4; Miao, Chunguang 1; Zhang, Xiao 1; Zhang, Ruogu 1; Peng, Jinlan 5; Zhang, Hong 6; Gu, Ping 1
刊名	ACS APPLIED MATERIALS & INTERFACES
	2021-04-21
卷号	13
关键词	hierarchical structure laminate chemical gradient mechanical properties crack propagation biomimetic design
ISSN号	1944-8244
DOI	10.1021/acsami.1c02867
通讯作者	Wang, Zhengzhi(zhengzhi.wang@whu.edu.cn) ; Luo, Tianzhi(tzluo@ustc.edu.cn)
英文摘要	The tail spike of the mantis shrimp is the appendage for counteracting the enemy from behind. Here, we investigate the correlations between the chemical compositions, the microstructures, and the mechanical properties of the spike. We find that the spike is a hollow beam with a varying cross section along the length. The cross section comprises four different layers with distinct features of microstructures and chemical compositions. The local mechanical properties of these layers correlate well with the microstructures and chemical compositions, a combination of which effectively restricts the crack propagation while maximizing the release of strain energy during deformation. Finite element analysis and mechanics modeling demonstrate that the optimized structure of the spike confines the mechanical damage in the region near the tip and prevents catastrophic breakage at the base. Furthermore, we use a 3D printing technique to fabricate multiple hollow cylindrical samples consisting of biomimetic microstructures of the spike and confirm that the combination of the Bouligand structure with radially oriented parallel sheets greatly improves the toughness and strength during compression tests. The multiscale design strategy of the spike revealed here is expected to be of great interest for the development of novel bioinspired materials.
资助项目	National Science Foundation of China[11572316] ; National Science Foundation of China[11502175] ; National Science Foundation of China[11772240] ; National Science Foundation of China[11720101002] ; National Science Foundation of China[11972264] ; National Science Foundation of China[11602177] ; National Science Foundation of China[21777165] ; Fundamental Research Funds for the Central Universities[WK2480000006] ; Fundamental Research Funds for the Central Universities[WK2090050040] ; Science Project of Anhui Province in China[201903a07020019]
WOS关键词	ALPHA-CHITIN ; ELASTIC-MODULUS ; DESIGN ; INDENTATION ; EXOSKELETON ; MECHANISMS ; HARDNESS
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000643578300021
资助机构	National Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Science Project of Anhui Province in China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122683]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Zhengzhi; Luo, Tianzhi
作者单位	1.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230052, Peoples R China 2.Wuhan Univ, Sch Civil Engn, Dept Engn Mech, Wuhan 430072, Peoples R China 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China 4.Univ Sci & Technol China, Expt Ctr Engn & Mat Sci, Hefei 230052, Peoples R China 5.Univ Sci & Technol China, Ctr Micro & Nanoscale Res & Fabricat, Hefei 230052, Peoples R China 6.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Shan,Liu, Pan,Lin, Weiqin,et al. Optimized Hierarchical Structure and Chemical Gradients Promote the Biomechanical Functions of the Spike of Mantis Shrimps[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13.
APA	Li, Shan.,Liu, Pan.,Lin, Weiqin.,Tian, Jie.,Miao, Chunguang.,...&Luo, Tianzhi.(2021).Optimized Hierarchical Structure and Chemical Gradients Promote the Biomechanical Functions of the Spike of Mantis Shrimps.ACS APPLIED MATERIALS & INTERFACES,13.
MLA	Li, Shan,et al."Optimized Hierarchical Structure and Chemical Gradients Promote the Biomechanical Functions of the Spike of Mantis Shrimps".ACS APPLIED MATERIALS & INTERFACES 13(2021).