Analysis of meso-structure of 3D woven preforms based on the micro-CT technology

被引：0
|
作者：
Shao M. [1 ,2 ]
Xie J. [1 ,2 ]
Yang Z. [1 ,2 ]
Jiao W. [1 ,2 ]
Guo Z. [1 ,2 ]
Chen L. [1 ,2 ]
Du X. [3 ]
机构：
[1] Ministry of Education Key Laboratory of Advanced Textile Composite Materials, Institute of Composite Materials, Tiangong University, Tianjin
[2] School of Textile Science and Engineering, Tiangong University, Tianjin
[3] Aerospace Research Institute of Materials and Processing Technology, Beijing
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2022年 / 39卷 / 08期
关键词：
3D woven; fiber structure; meso-scale deformation; micro-CT technology; preform;
D O I：
10.13801/j.cnki.fhclxb.20211102.001
中图分类号：
学科分类号：
摘要：
The 3D meso-structures of the fiber preforms was reconstructed based on the micro-computed tomography (micro-CT) technology, two quantitative indexes were proposed to characterize the deformation of the fiber preforms' geometric structure. The influence mechanism of weft densities and thicknesses on the meso-structure of the 3D woven preform was studied. The results show that the micro-CT technology can be used to characterize the cross-section and spatial path of the yarns inside the 3D woven preform effectively. The preform samples with the weft density of 2.0 picks/cm show obvious deformation, and thus are not suitable for practical engineering application. With the increase of the weft density, the internal structure of the fiber preform tends to be stable. The internal structures of the 10 mm samples are more stable than that of the 5 mm samples, however, the cross section and path of the surface yarns still show large deformation. © 2022 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：4129 / 4138
页数：9
相关论文
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