ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
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Abstract

Composites Research. 2018 31(6): 293-298
ⓒ The Journal of the Korean Society for Composite Materials
    
 
A Study on the Mechanical Properties of Braid Composites for the Manufacture of Aircraft Stringer
Jong Hyun Eun, Joon Suck Lee, Seung Hwan Park, Dong Hyun Kim, Jin Sung Chon, Ho Wook Yoo
Department of Fiber System Engineering, Yeungnam University, Gyeongsan 38541, Korea, Department of Composite Materials R&D Center, Textile for Life (T4L), Gyeongsan 38474, Korea
 
 
항공기용 스트링거 제작을 위한 브레이드 복합재료의 물성에 관한 연구
은종현, 이준석, 박승환, 김동현, 천진성, 유호욱
Department of Fiber System Engineering, Yeungnam University, Gyeongsan 38541, Korea, Department of Composite Materials R&D Center, Textile for Life (T4L), Gyeongsan 38474, Korea
 

In this paper, we have studied the physical properties of braided composites for use as aircraft stringers. Process variables such as drum winder speed, braid velocity, and mandrel diameter for 30°, 45° and 60° braid preforms were quantified and different epoxy resin types were applied to the braided preform using TGDDM, YD- 128. Physical properties such as tensile strength and flexural strength of braided composites were investigated. Thermal properties and decomposition temperature of epoxy resin were investigated by TGA analysis. As a result, the lower the angle of the braid composites, the higher the tensile strength and the Flexural strength. The physical properties of braided composites fabricated using TGDDM epoxy resin were superior to the physical properties of braided composites fabricated using YD-128 epoxy resin. This is because the molecular weight of TGDDM epoxy resin was higher than that of YD-128 epoxy resin.
 
Key words : Carbon fiber, Composite materials, Braid, Epoxy, Compression molding
중심단어 : 탄소섬유, 복합재료, 브레이드, 에폭시, 압축성형
 
 
  
 
 
 

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