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	Mechanical properties of hierarchical cellular materials. Part I: Analysis
	Fan, H. L. ; Jin, F. N. ; Fang, D. N.
	2010-10-12 ; 2010-10-12
关键词	Structural composites Sandwich Mechanical properties Elastic properties Buckling SOLIDS Materials Science, Composites
中文摘要	Two-dimensional (2D) hierarchical cellular materials made up of sandwich walls are predicted to have superior mechanical properties compared with solid-wall cellular materials. Equations of the stiffness, the buckling strength, the plastic collapse strength, the brittle failure strength and the fracture toughness were deduced. The enhancement of the mechanical properties of 2nd order hierarchical honeycombs is substantial (even an order of magnitude). The hierarchical honeycomb is much more damage tolerant and insensitive to wavy imperfections of the cell wall. Sandwich struts also enhance the buckling strength of the stretching-dominated 2nd order lattice grid material. Made up of sandwich struts, the hierarchical honeycomb has comparable mechanical properties with the stretching-dominated lattice grid material. (C) 2008 Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCI LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79018]
专题	清华大学
推荐引用方式 GB/T 7714	Fan, H. L.,Jin, F. N.,Fang, D. N.. Mechanical properties of hierarchical cellular materials. Part I: Analysis[J],2010, 2010.
APA	Fan, H. L.,Jin, F. N.,&Fang, D. N..(2010).Mechanical properties of hierarchical cellular materials. Part I: Analysis..
MLA	Fan, H. L.,et al."Mechanical properties of hierarchical cellular materials. Part I: Analysis".(2010).

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