文献类型：期刊文献

英文题名：Bending properties and failure mechanisms of three-dimensional hybrid woven spacer composites with glass and carbon fibers

作者：Wang, Liyong[1,2];Liu, Xiaohua[1];Saleemi, Sidra[1,3];Zhang, Yinjiang[4];Qiu, Yiping[1,5];Xu, Fujun[1]

机构：[1]Donghua Univ, Coll Text, Key Lab Text Sci & Technol, Minist Educ, Shanghai, Peoples R China;[2]Shihezi Fiber Inspect Inst, Shihezi, Peoples R China;[3]Univ Punjab, Dept Text Engn & Technol, Lahore, Pakistan;[4]Shaoxing Univ, Coll Text & Garment, Shaoxing, Peoples R China;[5]Quanzhou Normal Univ, Coll Text & Apparel, Quanzhou, Fujian, Peoples R China

年份：2019

卷号：89

期号：21-22

起止页码：4502

外文期刊名：TEXTILE RESEARCH JOURNAL

收录：SCI-EXPANDED(收录号：WOS:000486006200014)、、EI(收录号：20191306687775)、Scopus(收录号：2-s2.0-85063345142)、WOS

语种：英文

外文关键词：three-dimensional weaving; hybrid composites; bending property; failure mechanism

外文摘要：Three-dimensional (3D) woven spacer composites are competitive materials in aerospace fields due to their excellent integrated, light-weight structure. The face sheets of the 3D woven spacer composites are crucial for the mechanical properties. In this study, 3D hybrid composites, which are composed of glass and carbon fibers in the face sheets and glass fiber in the core layer as reinforcement and epoxy resin as the matrix, were designed and fabricated. The bending test results show that with the increase of the carbon fibers in the face sheets, the normalized bending strength of hybrid spacer composites showed limited improvement, while their normalized bending moduli and bending stiffnesses were significantly improved. The optical and scanning electron microscope images of the fractured surfaces reveal that the fibers in the top face sheet, which is under compression by the indenter, are damaged first and cause the failure of the entire structure, whereas the fibers in the bottom face sheets are stretched during the bending test and slightly damaged. In addition, in the failure cross-sections, pull-out of the carbon fibers is observed due to its limited interfacial bonding with the epoxy resin. This work could help optimize 3D hybrid woven spacer composite structures for better performance and lower cost.