A multi-layer integrated thermal protection system with C/SiC composite and Ti alloy lattice sandwich

被引：57
|
作者：
Xu, Yingjie [1 ,2 ]
Xu, Ningxin [1 ]
Zhang, Weihong [1 ]
Zhu, Jihong [1 ]
机构：
[1] Northwestern Polytech Univ, State IJR Ctr Aerosp Design & Addit Mfg, Xian 710072, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Engn Lab Aerosp Struct Design & Applicat, Xian 710072, Shaanxi, Peoples R China
来源：
COMPOSITE STRUCTURES | 2019年 / 230卷
基金：
中国国家自然科学基金;
关键词：
Thermal protection system; C/SiC composite; Lattice sandwich; Experiment; Finite element simulation; HEAT-TRANSFER; MECHANICAL-PROPERTIES; ENERGY-ABSORPTION; DESIGN; PERFORMANCE; LIGHTWEIGHT; STRENGTH; BEHAVIOR; INSULATION; PANEL;
D O I：
10.1016/j.compstruct.2019.111507
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, a multi-layer integrated thermal protection system (ITPS) is proposed and compared with two existed ITPS. This multi-layer ITPS consists of a carbon fiber reinforced silicon carbide matrix composite (C/SiC) panel, a glass wool layer and a titanium (Ti) lattice sandwich filled with glass wool. In order to satisfy the aerodynamic shape requirement of hypersonic vehicles, a curved ITPS structure is concerned in this study. Multi-layer curved ITPS and single-layer curved ITPS made of Ti alloy and C/SiC composite are firstly analyzed and discussed under typical aerodynamic heating and pressure loads. Numerical results show that the proposed multi-layer ITPS provides efficient thermal insulation and load bearing properties compared with the C/SiC sandwich ITPS and Ti alloy sandwich ITPS. Secondly, multi-layer curved ITPS samples are fabricated. Experimental tests and numerical validation are carried out to evaluate the heat transfer characteristics of the ITPS samples.
引用
收藏
页数：9
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