Compression performance and analytical model of hexagonal-core sandwich panels fabricated by 3D printed continuous carbon fiber-reinforced thermosetting epoxy composites
Source abstract
Abstract
Abstract Composite sandwich structures are widely used in a multitude of fields owing to their excellent properties, such as light weight and high strength. In this study, a series of hexagonal-core sandwich panels were integrally fabricated by three-dimensional (3D) printed continuous fiber reinforced thermosetting epoxy composites. The influence of the scaling effects that is, the side length and layer thickness on the compression performance of these structures was studied. The experimental results showed that the specific strengths of three different hexagonal-core sandwich panels with different side lengths of 5 mm, 10 mm and 20 mm side lengths is roughly maintained at 0.018 MPa/(kg m−3). In addition, doubling the wall thickness of the hexagonal core increases the compressive strength by only 38.9%. The performance characteristics of these hexagonal-core sandwich panels, which change with size, can provide a reference for designers and can be used for the preliminary prediction of the structural strength.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing and 3D Printing Technologies · Cellular and Composite Structures · Polymer composites and self-healing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. State-of-the-art review on honeycomb sandwich composite structures with an emphasis on filler materials10.1002/pc.26252 ↗
2. Study on effect of offset defect on mechanical property of honeycomb structures10.1016/j.istruc.2021.07.073 ↗
3. Effect of cell-wall angle on the in-plane crushing behaviour of hexagonal honeycombs10.1016/j.matdes.2012.10.050 ↗
4. Cellular composites in lightweight sandwich applications10.1016/j.matlet.2008.11.059 ↗
5. Scaling effects in the mechanical response of sandwich structures based on corrugated composite cores10.1016/j.compositesb.2016.02.061 ↗
6. Compressive efficiency of stretch–stretch-hybrid hierarchical composite lattice cores10.1016/j.matdes.2013.11.012 ↗
7. Compression performances and failure modes of 3D printed pyramidal lattice truss composite structures10.1016/j.coco.2020.100615 ↗
8. Symplectic analysis of dynamic properties of hexagonal honeycomb sandwich tubes with plateau borders10.1016/j.jsv.2015.04.012 ↗
9. The honeycomb conjecture10.1007/s004540010071 ↗
10. Experimental investigation of in-plane and out-of-plane crushing of aluminum honeycomb10.1016/j.msea.2012.01.070 ↗
11. Energy absorption of sandwich panels with composite-reinforced foam core10.1177/1099636205047888 ↗
12. The effect of cell irregularity on the high strain compression of 2D Voronoi honeycombs10.1016/j.ijsolstr.2005.05.008 ↗
13. Mechanical response of cellular solids: Role of cellular topology and microstructural irregularity10.1016/j.ijengsci.2008.03.012 ↗
14. Effects of cell shape and cell wall thickness variations on the elastic properties of two-dimensional cellular solids10.1016/j.ijsolstr.2004.08.005 ↗
15. Experimental and numerical study on honeycomb sandwich panels under bending and in-panel compression10.1016/j.matdes.2017.07.057 ↗
16. The effect of loading rate on the compression properties of carbon fibre-reinforced epoxy honeycomb structures10.1177/0021998319900364 ↗
17. Bitzer · 1997
18. Mechanics of pressure-adaptive honeycomb and its application to wing morphing10.1088/0964-1726/20/9/094010 ↗
19. Advanced honeycomb designs for improving mechanical properties: A review10.1016/j.compositesb.2021.109393 ↗
20. In-plane dynamic crushing of honeycombs—a finite element study10.1016/S0734-743X(02)00056-8 ↗
21. On the low-velocity impact responses of auxetic double arrowed honeycomb10.1016/j.ast.2020.105698 ↗
22. Fracture test for double cantilever beam of honeycomb sandwich panels10.1016/j.matlet.2007.05.084 ↗
23. All-composite flanges for anisogrid lattice-core sandwich panels to bear stretching load10.1016/j.coco.2020.04.001 ↗
24. Composite additive manufacturing of morphing aerospace structures10.1016/j.mfglet.2019.12.004 ↗
25. 3D printing for continuous fiber reinforced thermoplastic composites: mechanism and performance10.1108/RPJ-08-2015-0098 ↗
26. Preparation and characterization of 3D printed continuous carbon fiber reinforced thermosetting composites10.1016/j.polymertesting.2017.11.004 ↗
27. 3D printing of biofiber-reinforced composites and their mechanical properties: a review10.1108/RPJ-08-2019-0214 ↗
28. Investigation on process parameters of 3D printed continuous carbon fiber-reinforced thermosetting epoxy composites10.1016/j.addma.2020.101184 ↗
29. Geometrical scaling effects in the mechanical properties of 3D-printed body-centered cubic (BCC) lattice structures10.3390/polym13223967 ↗
30. A novel route to fabricate high-performance 3D printed continuous fiber-reinforced thermosetting polymer composites10.3390/ma12091369 ↗
31. Energy absorption of structures and materials
32. The mechanical behaviour of corrugated-core sandwich panels10.1016/j.compositesb.2012.10.031 ↗
33. Compressive behaviour of 3D printed sandwich structures based on corrugated core design10.1016/j.mtcomm.2020.101725 ↗