The equivalent thermal conductivity of lattice core sandwich structure:   A predictive model

doi:10.1016/j.applthermaleng.2015.10.002

CORC > 北京大学 > 工学院

	The equivalent thermal conductivity of lattice core sandwich structure: A predictive model
	Cheng, Xiangmeng ; Wei, Kai ; He, Rujie ; Pei, Yongmao ; Fang, Daining
刊名	APPLIED THERMAL ENGINEERING
	2016
关键词	Lattice core sandwich structures Thermal conductivity Thermal protection systems Theory SPECTRAL RADIATIVE PROPERTIES HEAT-TRANSFER PROTECTION SYSTEM COMPOSITES PANEL LIGHTWEIGHT INSULATION RESPONSES BEHAVIOR
DOI	10.1016/j.applthermaleng.2015.10.002
英文摘要	The equivalent thermal conductivity of lattice core sandwich structure was predicted using a novel model. The predictive results were in good agreement with experimental and Finite Element Method results. The thermal conductivity of the lattice core sandwich structure was attributed to both core conduction and radiation. The core conduction caused thermal conductivity only relied on the relative density of the structure. And the radiation caused thermal conductivity increased linearly with the thickness of the core. It was found that the equivalent thermal conductivity of the lattice core sandwich structure showed a highly dependent relationship on temperature. At low temperatures, the structure exhibited a nearly thermal insulated behavior. With the temperature increasing, the thermal conductivity of the structure increased owing to radiation. Therefore, some attempts, such as reducing the emissivity of the core or designing multilayered structure, are believe to be of benefit for improving the thermal protection performance of the structure at high temperatures. (C) 2015 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China [11402003]; China Postdoctoral Science Foundation [2014M550558, 2015T80018]; SCI(E); EI; ARTICLE; herujie@pku.edu.cn; 236-243; 93
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/422617]
专题	工学院
推荐引用方式 GB/T 7714	Cheng, Xiangmeng,Wei, Kai,He, Rujie,et al. The equivalent thermal conductivity of lattice core sandwich structure: A predictive model[J]. APPLIED THERMAL ENGINEERING,2016.
APA	Cheng, Xiangmeng,Wei, Kai,He, Rujie,Pei, Yongmao,&Fang, Daining.(2016).The equivalent thermal conductivity of lattice core sandwich structure: A predictive model.APPLIED THERMAL ENGINEERING.
MLA	Cheng, Xiangmeng,et al."The equivalent thermal conductivity of lattice core sandwich structure: A predictive model".APPLIED THERMAL ENGINEERING (2016).