Fabrication and compression performance of continuous fiber Octet-truss lattice sandwich structure

ZHANG Jiarui; ZHAI Guangtao; LI Wenli

doi:10.13801/j.cnki.fhclxb.20201209.001

Volume 38 Issue 6

Jun. 2021

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ZHANG Jiarui, ZHAI Guangtao, LI Wenli. Fabrication and compression performance of continuous fiber Octet-truss lattice sandwich structure[J]. Acta Materiae Compositae Sinica, 2021, 38(6): 1767-1774. doi: 10.13801/j.cnki.fhclxb.20201209.001

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ZHANG Jiarui, ZHAI Guangtao, LI Wenli. Fabrication and compression performance of continuous fiber Octet-truss lattice sandwich structure[J]. Acta Materiae Compositae Sinica, 2021, 38(6): 1767-1774. doi: 10.13801/j.cnki.fhclxb.20201209.001

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Fabrication and compression performance of continuous fiber Octet-truss lattice sandwich structure

doi: 10.13801/j.cnki.fhclxb.20201209.001

ZHANG Jiarui^1
,,
ZHAI Guangtao^2
,,
LI Wenli^{2
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1.
Institute of Intelligent Manufacturing and Automotive of CQTBI, Chongqing 401520, China
2.
Key Laboratory of Advanced Manufacturing Technology for Automobile Parts, Ministry of Education, Chongqing University of Technology, Chongqing 400054, China

Received Date: 2020-10-09
Accepted Date: 2020-11-25

Available Online: 2020-12-10

Publish Date: 2021-06-23

Abstract

Abstract

Octet-truss is a three-dimensional lattice structure with light configuration and multi-function characteristics. In order to analyze and verify its compression resistance, a method of preparing Octet-truss lattice sandwich panel with continuous fiber was proposed. A set of Octet-truss structure molding tools was designed by this method. Different types of glass fiber and Kevlar fiber specimens were prepared by spatial weaving method and resin curing process, and the axial compression test was carried out. The experimental results show that the mechanical properties of different materials and different sizes of sandwich panels prepared by this method are stable, and the reliability of the preparation process is verified, Combined with the experimental process and electron microscope images, the main failure mode of glass fiber samples is fracture of the struts near the nodes induced by fiber microbuckling, while the Kevlar fiber samples failed by the Euler buckling of the struts.
- Octet-truss,
- lattice sandwich structure,
- preparation process,
- molding tool,
- compression performance
Long Abstrsct
Innovation Points

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References(28)

References

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