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. 2021 Jul 31;14(15):4284.
doi: 10.3390/ma14154284.

Effect of Structural Differences on the Mechanical Properties of 3D Integrated Woven Spacer Sandwich Composites

Lvtao Zhu  1   2 , Mahfuz Bin Rahman  1 , Zhenxing Wang  1
Affiliations

Effect of Structural Differences on the Mechanical Properties of 3D Integrated Woven Spacer Sandwich Composites

Lvtao Zhu et al. Materials (Basel). .

Abstract

Three-dimensional integrated woven spacer sandwich composites have been widely used as industrial textiles for many applications due to their superior physical and mechanical properties. In this research, 3D integrated woven spacer sandwich composites of five different specifications were produced, and the mechanical properties and performance were investigated under different load conditions. XR-CT (X-ray computed tomography) images were employed to visualize the microstructural details and analyze the fracture morphologies of fractured specimens under different load conditions. In addition, the effects of warp and weft direction, face sheet thickness, and core pile height on the mechanical properties and performance of the composite materials were analyzed. This investigation can provide significant guidance to help determine the structure of composite materials and design new products according to the required mechanical properties.

Keywords: 3D integrated woven spacer sandwich composites; X-ray computed tomography; designing new products; industrial textiles.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
“8” shaped woven spacer fabric.
Figure 2
Figure 2
Schematic diagram of the hand lay-up process.
Figure 3
Figure 3
Schematic diagrams of (a) warp and (b)weft direction samples.
Figure 4
Figure 4
Equipment set ups for (a) bending and (b) flat compression experiments.
Figure 5
Figure 5
Picture of flat compression specimens.
Figure 6
Figure 6
Schematic diagram of the tensile test specimen.
Figure 7
Figure 7
Schematic diagram of the edgewise compression test specimen.
Figure 8
Figure 8
X-ray computed tomography machine.
Figure 9
Figure 9
Warp stress–displacement curve.
Figure 10
Figure 10
Weft stress–displacement curve.
Figure 11
Figure 11
Average elastic modulus in warp and weft directions.
Figure 12
Figure 12
Failure deflection in warp and weft directions.
Figure 13
Figure 13
Reverse view of the damaged samples.
Figure 14
Figure 14
X-ray computed tomography images of the flexural fractured specimen.
Figure 15
Figure 15
Sample load–time diagram.
Figure 16
Figure 16
Sample load–displacement diagram.
Figure 17
Figure 17
Weft tensile load–displacement curve.
Figure 18
Figure 18
Maximum weft tensile load diagram.
Figure 19
Figure 19
X-ray computed tomography image of the fractured tensile specimen.
Figure 20
Figure 20
Warp tensile load–displacement curve of sample group A.
Figure 21
Figure 21
Load–displacement curve of weft compression.
Figure 22
Figure 22
Maximum weft compression load diagram.
Figure 23
Figure 23
Warp compression load–displacement curve of sample C.
Figure 24
Figure 24
3D X-ray microscopy image of warp compression fractured specimen.
See this image and copyright information in PMC

References

    1. Velosa J.C., Rana S., Fangueiro R., Van Hattum F.W.J., Soutinho F., Marques S. Mechanical behavior of novel sandwich composite panels based on 3D-knitted spacer fabrics. J. Reinf. Plast. Compos. 2012;31:95–105. doi: 10.1177/0731684411431354. - DOI
    1. Khosravani M.R. Applied Mechanics and Materials. Trans Tech Publications; Kapellweg, Switzerland: 2012. Composite materials manufacturing processes; pp. 1361–1367.
    1. Sugun B.S., Sundaram R. 3D Composites: Opportunities & Challenges. J. Indian Inst. Sci. 2015;95:221–232.
    1. Jia L.X., Wang R., Liu J.M. Design and Property Analysis of Woven Spacer Fabric Sandwich Panels. Adv. Mater. Res. 2011;332–334:747–751. doi: 10.4028/www.scientific.net/AMR.332-334.747. - DOI
    1. Li M., Wang S., Zhang Z., Wu B. Effect of Structure on the Mechanical Behaviors of Three-Dimensional Spacer Fabric Composites. Appl. Compos. Mater. 2009;16:1–14. doi: 10.1007/s10443-008-9072-4. - DOI

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