考虑纬斜的三维机织圆筒预制体细观结构表征

doi:10.19936/j.cnki.2096-8000.20260128.011

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (1): 74-81.DOI: 10.19936/j.cnki.2096-8000.20260128.011

考虑纬斜的三维机织圆筒预制体细观结构表征

胡敬爱^1,2, 焦亚男^1,2*, 张一帆^1,2, 段静静^1,2

1.天津工业大学先进纺织复合材料教育部重点实验室,天津 300387;
2.天津工业大学纺织科学与工程学院,天津 300387

收稿日期:2024-11-06 出版日期:2026-01-28 发布日期:2026-03-12
通讯作者: 焦亚男(1971—),女,博士,研究员,博士生导师,研究方向为纺织复合材料结构与性能,jiaoyn@tiangong.edu.cn。
作者简介:胡敬爱(2000—),女,硕士研究生,研究方向为三维机织复合材料。
基金资助:
国家重点研发计划(2023YFB3709800)

Microstructure characterization of 3D woven cylinder preform with weft skew considered

HU Jing'ai^1,2, JIAO Yanan^1,2*, ZHANG Yifan^1,2, DUAN Jingjing^1,2

1. Key Laboratory of Advanced Textile Composite Materials, Ministry of Education, Tiangong University, Tianjin 300387, China;
2. College of Textile Science and Engineering, Tiangong University, Tianjin 300387, China

Received:2024-11-06 Online:2026-01-28 Published:2026-03-12

摘要/Abstract

摘要： 利用微计算机断层扫描技术解构了三维机织角联锁圆筒预制体真实细观结构,分析了各系统纱线横截面形态和空间位置分布规律,发现圆筒预制体在织造过程中会形成纬斜的现象。基于经纬纱截面分别为矩形和凸透镜形的假设,构建了带有纬斜的三维机织圆筒织物几何模型,建立了圆筒预制体纱线参数、织物参数和结构尺寸间的关系,与织物厚度实测值进行对比,误差为-1.958%。制备了圆筒试样进行分析,研究结果表明,纬斜角一般在30°~50°之间,受纬密影响明显,随纬密增大而增大,可为三维机织圆筒预制体的工艺设计提供技术支撑。

关键词: 三维机织, 微计算机断层扫描技术, 细观结构, 纬斜, 几何模型, 复合材料

Abstract: Micro-computed tomography (Micro-CT) was employed to elucidate the actual meso-scale architecture of 3D woven angle interlock cylinder preforms. A detailed analysis was conducted to ascertain the cross-sectional geometry and the spatial arrangement of yarns within each system. It was observed that the weft skew phenomenon occurred during the fabrication process of the cylinder preform. Under the premise that the cross-sectional profiles of warp and weft yarns are rectangular and lens-shaped, respectively, a geometric model for a 3D woven cylinder fabric exhibiting weft skew has been formulated. This model delineates the interdependencies among yarn parameters, fabric characteristics, and the structural dimensions of the cylinder preform. The model's accuracy has been quantified, with an error margin of -1.958%. The cylindrical specimen was meticulously prepared for subsequent analysis. Analysis of the findings revealed that the weft yarn skew typically ranges from 30° to 50°, a variance that is significantly influenced by the weft density. Notably, the skew increases with a higher weft density. These insights provide crucial technical guidance for the process design of 3D woven cylinder prefabrication.

Key words: three-dimensional weaving, Micro-CT, microtructure, weft skew, geometric model, composites

中图分类号:

TB332

胡敬爱, 焦亚男, 张一帆, 段静静. 考虑纬斜的三维机织圆筒预制体细观结构表征[J]. 复合材料科学与工程, 2026, 0(1): 74-81.

HU Jing'ai, JIAO Yanan, ZHANG Yifan, DUAN Jingjing. Microstructure characterization of 3D woven cylinder preform with weft skew considered[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(1): 74-81.

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考虑纬斜的三维机织圆筒预制体细观结构表征

Microstructure characterization of 3D woven cylinder preform with weft skew considered

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