X-ray 3D microscopy analysis of fracture mechanisms for 3D orthogonal woven E-glass/epoxy composites with drilled and moulded-in holes
注意：本论文已在Composites Part B 133 (2018) 193－202.发表
使用者请注明论文出处
Fujun Xu a, b, Lijun Sun a, Lvtao Zhu c, Shu Yang d, David Hui e, Yiping Qiu a, b, *
a Key Laboratory of Textile Science & Technology, Ministry of Education (Donghua University), Shanghai 201620, China
b College of Textiles, Donghua University, Shanghai 201620, China
c College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou, 310018, China
d College of Nanhu, Jiaxing University, Jiaxing 314000, China
e Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70148, USA
Abstract：
As a promising structural material, three dimensional woven fabric reinforced composites are subjected to machining or drilling during
manufacturing processes for components assembly. In-plane tensile and flexural properties of a three dimensional orthogonal woven E-glass/epoxy
composites (3DOWC) with 4 and 6 mm drilled holes (DH) and moulded-in holes (MH) are investigated. 2D woven E-glass/epoxy laminated composites
(2DWC) with the same drilled hole sizes are also tested for comparison. Two different calculation methods based on gross and net sectional area
are adopted to evaluate the effects of the holes on mechanical performance of the composites. The 3DOWC-MH possesses the highest tensile and
flexural strength, followed by 3DOWC-DH and 2DWC-DH. As the hole diameter increases, the mechanical properties of all the composites degrade,
while those of the 3DOWC-MH increases when the net sectional areas are used for calculation. X-ray 3D microscopy and scanning electron
microscopy are employed to analyze damages at submicron level resulted from the tests. Various failure modes such as fiber fracture, matrix
cracking and tow debonding are observed, while serious delamination occurs in 2DWC but not in 3DOWC.
Keywords:3D woven composites;Drilled holes;Tensile property;Flexural property
1、浏览PDF格式全文需要使用软件－－Abode Acrobat(由于软件较大并常见,我站不提供下载)
2、下载论文全文请点击鼠标右键“另存为”或使用断点续传软件下载(3269KB)
本站收录的本文作者的其他论文：
1、 Tensile and interfacial properties of polyacrylonitrile-based carbon fiber after different cryogenic treated condition
2、Characterization of enhanced interfacial bonding between epoxy and plasma functionalized carbon nanotube films
3、Modification of tensile, wear and interfacial properties of Kevlar fibers under cryogenic treatment
4、Flexible strain sensor based on aerogel-spun carbon nanotube yarn with a core-sheath structure
更多相关论文请点击本站的<<<站内全文搜索>>>查找 |
