Preparation and mechanical properties of glass fiber reinforced 3D fabric reinforced epoxy foam sandwich composites

LI Huaguan; DING Ying; ZHANG Yue; XIANG Junxian; WANG Jie; LI Jianchun

doi:10.13801/j.cnki.fhclxb.20220120.001

Volume 40 Issue 1

Jan. 2023

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LI Huaguan, DING Ying, ZHANG Yue, et al. Preparation and mechanical properties of glass fiber reinforced 3D fabric reinforced epoxy foam sandwich composites[J]. Acta Materiae Compositae Sinica, 2023, 40(1): 601-612. doi: 10.13801/j.cnki.fhclxb.20220120.001

Citation:

LI Huaguan, DING Ying, ZHANG Yue, et al. Preparation and mechanical properties of glass fiber reinforced 3D fabric reinforced epoxy foam sandwich composites[J]. Acta Materiae Compositae Sinica, 2023, 40(1): 601-612. doi: 10.13801/j.cnki.fhclxb.20220120.001

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Preparation and mechanical properties of glass fiber reinforced 3D fabric reinforced epoxy foam sandwich composites

doi: 10.13801/j.cnki.fhclxb.20220120.001

1.
School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China
2.
School of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Funds: National Natural Science Foundation of China (52175327); 2021 Jiangsu Province Postgraduate Practice Innovation Plan Project (SJCX21_0918); Jiangsu Qing-Lan Project; Young Elite Scientists Sponsorship Program by CAST (2021QNRC001); Natural Science Foundation of the Jiangsu Higher Education Institution of China (22KJA430006)

Received Date: 2021-11-22
Accepted Date: 2022-01-05
Rev Recd Date: 2021-12-21

Available Online: 2022-01-20

Publish Date: 2023-01-15

Abstract

Abstract

The preparation and mechanical properties of glass fiber 3D fabric reinforced epoxy foam composites (GF-Fabric/EP composites) were studied in order to further improve the bearing capacity and comprehensive properties of foam sandwich composite materials and realize its application in rail transit and automobile industry. The GF-Fabric/EP composite and its sandwich structure were fabricated. The failure behavior of GF-Fabric/EP composite and its sandwich structure were explored to reveal the reinforcing mechanism of the 3D fabric. The results show that the introduction of 3D fabric can significantly improve the strength, stiffness and failure strain of GF Fabric/EP composites. However, under different load-bearing conditions, each yarn plays a different role and effect. The properties, dimensions and surface/core interface properties of panel and core materials are important factors affecting the mechanical properties and failure characteristics of GF Fabric/EP sandwich composites. Taking the bending properties under three-point loading as an example, for different GF Fabric/EP sandwich composites, it is necessary to adjust the span thickness ratio and specimen size and obtain ideal failure characteristics before effective and reasonable evaluation of their bending properties or interlaminar shear properties.
- epoxy foam sandwich composite,
- 3D fabric,
- mechanical properties,
- finite element simulation,
- failure mechanism
Long Abstrsct
Innovation Points

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References(28)

References

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