Planar lattices with tailorable coefficient of thermal expansion and   high stiffness based on dual-material triangle unit

doi:10.1016/j.jmps.2015.10.004

CORC > 北京大学 > 工学院

	Planar lattices with tailorable coefficient of thermal expansion and high stiffness based on dual-material triangle unit
	Wei, Kai ; Chen, Haosen ; Pei, Yongmao ; Fang, Daining
刊名	JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
	2016
关键词	Lattice material Thermal expansion Mechanical properties Aperiodic lattice OPTIMIZATION
DOI	10.1016/j.jmps.2015.10.004
英文摘要	The unexpected thermal distortions and failures in engineering raise the big concern about thermal expansion controlling. Thus, design of tailorable coefficient of thermal expansion (CTE) is urgently needed for the materials used in large temperature variation circumstance. Here, inspired by multi-fold rotational symmetry in crystallography, we have devised six kinds of periodic planar lattices, which incorporate tailorable CTE and high specific biaxial stiffness. Fabrication process, which overcame shortcomings of welding or adhesion connection, was developed for the dual-material planar lattices. The analytical predictions agreed well with the CTE measurements. It is shown that the planar lattices fabricated from positive CTE constituents, can give large positive, near zero and even negative CIEs. Furthermore, a generalized stationary node method was proposed for aperiodic lattices and even arbitrary structures with desirable thermal expansion. As an example, aperiodic quasicrystal lattices were designed and exhibited zero thermal expansion property. The proposed method for the lattices of lightweight, robust stiffness, strength and tailorable thermal expansion is useful in the engineering applications. (C) 2015 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [11227801, 11232001, 91216301]; National Basic Research Program of China [G2010CB832701, 2011CB610303, 2011CB606105]; SCI(E); EI; ARTICLE; peiym@pku.edu.cn; fangdn@pku.edu.cn; 173-191; 86
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/422700]
专题	工学院
推荐引用方式 GB/T 7714	Wei, Kai,Chen, Haosen,Pei, Yongmao,et al. Planar lattices with tailorable coefficient of thermal expansion and high stiffness based on dual-material triangle unit[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2016.
APA	Wei, Kai,Chen, Haosen,Pei, Yongmao,&Fang, Daining.(2016).Planar lattices with tailorable coefficient of thermal expansion and high stiffness based on dual-material triangle unit.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS.
MLA	Wei, Kai,et al."Planar lattices with tailorable coefficient of thermal expansion and high stiffness based on dual-material triangle unit".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS (2016).