Effective elastic modulus of bone-like hierarchical materials

doi:10.1007/s10338-007-0723-z

IMECH-IR > 力学所知识产出(1956-2008)

	Effective elastic modulus of bone-like hierarchical materials
	Zuo SC(左树春); Wei YG(魏悦广); Wei, YG (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
发表期刊	Acta Mechanica Solida Sinica
	2007
卷号	20 期号:3 页码:198-205
ISSN	0894-9166
摘要	A shear-lag model is used to study the mechanical properties of bone-like hierarchical materials. The relationship between the overall effective modulus and the number of hierarchy level is obtained. The result is compared with that based on the tension-shear chain model and finite element simulation, respectively. It is shown that all three models can be used to describe the mechanical behavior of the hierarchical material when the number of hierarchy levels is small. By increasing the number of hierarchy level, the shear-lag result is consistent with the finite element result. However the tension-shear chain model leads to an opposite trend. The transition point position depends on the fraction of hard phase, aspect ratio and modulus ratio of hard phase to soft phase. Further discussion is performed on the flaw tolerance size and strength of hierarchical materials based on the shear-lag analysis.
关键词	Hierarchical Materials Tension-sheax Chain Model Shear-lag Model Mechanical-properties Fracture Nacre Organization Deformation Tension Model
DOI	10.1007/s10338-007-0723-z
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000250454300002
关键词[WOS]	MECHANICAL-PROPERTIES ; FRACTURE ; NACRE ; ORGANIZATION ; DEFORMATION ; TENSION ; MODEL
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/33887
专题	力学所知识产出(1956-2008)
通讯作者	Wei, YG (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Zuo SC,Wei YG,Wei, YG . Effective elastic modulus of bone-like hierarchical materials[J]. Acta Mechanica Solida Sinica,2007,20,3,:198-205.
APA	左树春,魏悦广,&Wei, YG .(2007).Effective elastic modulus of bone-like hierarchical materials.Acta Mechanica Solida Sinica,20(3),198-205.
MLA	左树春,et al."Effective elastic modulus of bone-like hierarchical materials".Acta Mechanica Solida Sinica 20.3(2007):198-205.

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