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	Anisotropic Mechanical Properties of Lattice Grid Composites
	Fan, H. L. ; Fang, D. N.
	2010-05-10 ; 2010-05-10
关键词	lattice grid materials anisotropy quasi-isotropy stiffness strength EFFECTIVE ELASTIC PROPERTIES DESIGN BEHAVIOR Materials Science, Composites
中文摘要	According to the equivalent continuum method and coordinates transformation, the anisotropic properties of the stiffness and the strength of planer lattice grid composites were researched. Anisotropic properties of various lattice grid composites with three to five stacks of struts were discussed and compared. The criteria of stiffness isotropy and orthotropy were concluded. Ordinarily, the grid stiffness is anisotropic. But with two or four symmetries the lattice is orthotropic and quasi-isotropic with at least six symmetries. The initial yield or brittle failure strength of typical lattice grid compoaites was studied and compared. The strength of the lattice grid composite is always anisotropic, even if their stiffness is quasi-isotropic. The degree of anisotropy of the strength is normally stronger than the stiffness anisotropy. With more symmetries, more bar rows and more uniform equivalent rigidities of struts, the variation of the strength gets smaller.
语种	英语 ; 英语
出版者	SAGE PUBLICATIONS LTD ; LONDON ; 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22472]
专题	清华大学
推荐引用方式 GB/T 7714	Fan, H. L.,Fang, D. N.. Anisotropic Mechanical Properties of Lattice Grid Composites[J],2010, 2010.
APA	Fan, H. L.,&Fang, D. N..(2010).Anisotropic Mechanical Properties of Lattice Grid Composites..
MLA	Fan, H. L.,et al."Anisotropic Mechanical Properties of Lattice Grid Composites".(2010).

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