基于空间编织法制备的连续纤维复合点阵材料及其压缩性能研究

doi:10.19936/j.cnki.2096-8000.20210328.007

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (3): 45-50.DOI: 10.19936/j.cnki.2096-8000.20210328.007

基于空间编织法制备的连续纤维复合点阵材料及其压缩性能研究

张甲瑞¹, 翟光涛^2*

1.重庆工商职业学院智能制造与汽车学院,重庆401520;
2.重庆理工大学车辆工程学院,重庆400054

收稿日期:2020-07-14 出版日期:2021-03-28 发布日期:2021-04-30
通讯作者: 翟光涛(1984-),男,实验师,硕士研究生,主要研究方向为超轻结构设计、制备及应用,andyzgt@cqut.edu.cn。
作者简介:张甲瑞(1984-),男,工程师/讲师,硕士研究生,主要研究方向为汽车新材料制备及应用。
基金资助:
重庆市教委科学技术研究项目(KJQN201804007);国家自然科学基金委青年项目(51805061);国家重点研发计划项目(2018YFB0105402)

STUDY ON THE COMPRESSION PROPERTIES OF CONTINUOUS FIBER COMPOSITE LATTICE MATERIALS BASED ON SPACE WEAVING METHOD

ZHANG Jia-rui¹, ZHAI Guang-tao^2*

1. Institute of Intelligent Manufacturing and Automotive of CQTBI, Chongqing 401520, China;
2. Chongqing University of Technology, Vehicle Engineering Institute, Chongqing 400054, China

Received:2020-07-14 Online:2021-03-28 Published:2021-04-30

摘要/Abstract

摘要： 针对目前新材料领域现有连续纤维复合点阵材料制备技术的不足,提出了一种全新的纤维复合点阵材料制备方法。在深入分析现有纤维复合点阵材料制备技术和Octet-truss单元的结构特征的基础上,开发了一种利用连续纤维绳通过编织制备三维纤维复合点阵材料的新方法——空间编织法,并设计了一套专用成型工装,然后利用该方法和树脂固化工艺制备了连续纤维Octet-truss点阵复合材料,最后根据ASTM C365测试方法对试件进行单轴压缩实验。实验结果表明,Octet-truss结构稳定性较好,应力应变曲线变化规律基本一致,结合实验过程与电镜图片分析可知,试件主要失效模式为纤维微曲屈引起的节点附近斜杆断裂,为今后连续纤维复合三维点阵材料的制备和力学性能研究奠定了基础。

关键词: 空间编织法, 点阵材料, 纤维复材, 压缩性能, 试验研究

Abstract: In view of the deficiency of the existing manufacturing technologies of continuous fiber composite lattice materials in the field of new materials, a new fabrication method for fiber composite lattice materials is proposed in this paper. Based on the deep analysis of current manufacturing technologies for fiber composite lattice materials and the structural characteristics of Octet-truss unit-cell, this paper developed a novel fabrication technique called spatial weaving method for fiber composite lattice materials, which weaves three-dimensional lattice materials with continuous fiber braids, and designed a set of forming tools. Subsequently, glass fiber composite lattice samples were prepared with this technique and resin curing process. And the uniaxial compression test was carried out according to ASTM C365. The results show good structural stability of these lattice samples, and the stress-strain curves of different samples are basically consistent. The main failure mode of these tested samples is the fracture of inclined struts adjacent to the nodes induced by fiber microbuckling according to the experimental process and electron microscopic image. This paper lays the foundation for the further studies on the fabrication and mechanical properties of fiber composite lattice materials.

Key words: space weaving method, lattice material, fiber composite, compression properties, experimental study

中图分类号:

TB332

张甲瑞, 翟光涛. 基于空间编织法制备的连续纤维复合点阵材料及其压缩性能研究[J]. 复合材料科学与工程, 2021, 0(3): 45-50.

ZHANG Jia-rui, ZHAI Guang-tao. STUDY ON THE COMPRESSION PROPERTIES OF CONTINUOUS FIBER COMPOSITE LATTICE MATERIALS BASED ON SPACE WEAVING METHOD[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(3): 45-50.

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基于空间编织法制备的连续纤维复合点阵材料及其压缩性能研究

STUDY ON THE COMPRESSION PROPERTIES OF CONTINUOUS FIBER COMPOSITE LATTICE MATERIALS BASED ON SPACE WEAVING METHOD

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