Anisotropic mechanical behaviors and their structural dependences of crossed-lamellar structure in a bivalve shell

IMR OpenIR

	Anisotropic mechanical behaviors and their structural dependences of crossed-lamellar structure in a bivalve shell
	Jiao, D.; Liu, Z. Q.; Qu, R. T.; Zhang, Z. F.; liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
	2016
发表期刊	MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN	0928-4931
卷号	59 页码:828-837
摘要	Crossed-lamellar structure is one of the most common organizations found in mollusk shells and may serve as a natural mimetic model for designing bio-inspired synthetic materials. Nonetheless, the mechanical behaviors and corresponding mechanisms have rarely been investigated for individual macro-layer of such structure. The integrated effects of orientation and hydration also remain unclear. In this study, the mechanical behaviors and their structural dependences of pure crossed-lamellar structure in Saxidomus purpuratus shell were systematically examined by three-point bending and compression tests. Mechanical properties and fracture mechanisms were revealed to depend strongly on the orientation, hydration state and loading condition. Three basic cracking modes of inter-platelet, trans-platelet, and along the interfaces between first-order lamellae were identified, and the interfacial separation was enhanced by hydration. Macroscopic compressive fracture was accomplished through axial splitting during which multiple toughening mechanisms were activated. The competition among different cracking modes was quantitatively evaluated by analyzing their driving stresses and resistances from fundamental mechanics. This study helps to clarify the mechanical behaviors of naturally occurring crossed-lamellar structure, and accordingly, aids in designing new bin-inspired synthetic materials by mimicking it. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[jiao, d. ; liu, z. q. ; qu, r. t. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Bivalves Crossed-lamellar Structure Mechanical Properties Fracture Mechanism Anisotropy
资助者	National Natural Science Foundation of China [51331007]; IMR SYNL-T.S. Ke Research Fellowship; China Postdoctoral Science Foundation [2014M561263]
收录类别	sci
语种	英语
WOS记录号	WOS:000367107400097
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74632
专题	中国科学院金属研究所
通讯作者	liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
推荐引用方式 GB/T 7714	Jiao, D.,Liu, Z. Q.,Qu, R. T.,et al. Anisotropic mechanical behaviors and their structural dependences of crossed-lamellar structure in a bivalve shell[J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,2016,59:828-837.
APA	Jiao, D.,Liu, Z. Q.,Qu, R. T.,Zhang, Z. F.,liuzq@imr.ac.cn,&zhfzhang@imr.ac.cn.(2016).Anisotropic mechanical behaviors and their structural dependences of crossed-lamellar structure in a bivalve shell.MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS,59,828-837.
MLA	Jiao, D.,et al."Anisotropic mechanical behaviors and their structural dependences of crossed-lamellar structure in a bivalve shell".MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 59(2016):828-837.