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

doi:10.19936/j.cnki.2096-8000.20210328.007

Abstract

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

CLC Number:

TB332

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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