Flatwise compression properties of trapezoidal lattice-web reinforced foam core sandwich composites

SHI Chang; WANG Jihui; ZHU Jun; NI Aiqing; LI Xiang

doi:10.13801/j.cnki.fhclxb.20210506.002

Volume 39 Issue 2

Feb. 2022

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SHI Chang, WANG Jihui, ZHU Jun, et al. Flatwise compression properties of trapezoidal lattice-web reinforced foam core sandwich composites[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 590-600. doi: 10.13801/j.cnki.fhclxb.20210506.002

Citation:

SHI Chang, WANG Jihui, ZHU Jun, et al. Flatwise compression properties of trapezoidal lattice-web reinforced foam core sandwich composites[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 590-600. doi: 10.13801/j.cnki.fhclxb.20210506.002

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Flatwise compression properties of trapezoidal lattice-web reinforced foam core sandwich composites

doi: 10.13801/j.cnki.fhclxb.20210506.002

SHI Chang^{1, 2
,},
WANG Jihui^{1
,
,},
ZHU Jun^2
,,
NI Aiqing³,
LI Xiang²

1.
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
2.
Luoyang Ship Material Research Institute, Luoyang 471039, China
3.
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

Received Date: 2021-03-08
Accepted Date: 2021-04-30
Rev Recd Date: 2021-04-13

Available Online: 2021-05-06

Publish Date: 2022-02-01

Abstract

Abstract

Trapezoidal lattice-web reinforced foam core sandwich composites with different structural parameters were designed and manufactured by the vacuum assisted resin infusion (VARI) process. The failure modes and mechanical properties of the sandwich panels in flatwise compression loading were studied experimentally. Also, the effects of structural parameters (specimen size, lattice-web angle, lattice-web thickness) on specific compression strength, specific compression modulus and specific energy absorption were investigated. The results show that the main failure modes of the lattice-web reinforced sandwich panels are the fracture and buckling of lattice-web, and the synergistic enhancement effect between foam core and lattice-web is revealed. Compared with the control specimen, the specific compression strength, specific compression modulus and specific energy absorption of the sandwich panel with 60° lattice-web increase by 89.4%, 137.9% and 45.2%, respectively. The compression properties increase with the increase of the angle and thickness of lattice-web. The conclusions above provide reference for the design and application of lightweight sandwich composites in the ship and ocean engineering.
- sandwich composite,
- lattice-web,
- failure mode,
- flatwise compression properties,
- specific energy absorption
Long Abstrsct
Innovation Points

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References(26)

References

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