Effect of Suture on Mechanical Properties of Stitched Thermal Protection Sandwich

被引：0

作者：

Lin, Cong ^{[1
]}

Lee, Fanchun ^{[1
]}

Xue, Taohua ^{[1
]}

机构：

[1] Dalian Maritime Univ, Ship Architecture & Ocean Engn Coll, Dalian 16026, Peoples R China

来源：

MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS | 2019年 / 22卷 / 06期

关键词：

thermal protection structure; stitched sandwich; tensile properties; bending performance; finite element analysis; LOW-VELOCITY IMPACT; DELAMINATION RESISTANCE; BEHAVIOR;

D O I：

10.1590/1980-5373-MR-2019-0435

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the tensile properties and bending performances of stitched thermal protection structure in engineering, and the effect of stitching density on mechanical properties, via a model of ceramic-aerogel stitched sandwich. With the help of ANSYS, titanium alloy bottom plate was added to the bottom surface of the thermal protection structure, which was regarded as the protected body, and the two were synergistically deformed. The validity of the entire model was verified. The distribution of stress field inside the structure was determined by substructure precise analysis method and the law of the finite element solution was given. The results show that interlaminar performance of the stitched sandwich is improved by 30% on average under tensile or four-point bending conditions.

引用

页数：11

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