Experimental and Numerical Analysis of the Shear Properties of Honeycomb Cores Produced Using Additive Technologies

Authors

Ihor I. Derevianko, Yuzhnoye State Design Office (3, Krivorizka str, Dnipro, 49008, Ukraine), A. Pidhornyi Institute of Mechanical Engineering Problems of NASU (2/10, Pozharskyi str., Kharkiv, 61046, Ukrainе), e-mail: dereviankoii2406@gmail.com, ORCID: 0000-0002-1477-3173

Borys V. Uspenskyi, A. Pidhornyi Institute of Mechanical Engineering Problems of NASU (2/10, Pozharskyi str., Kharkiv, 61046, Ukrainе), e-mail: Uspensky.kubes@gmail.com, ORCID: 0000-0001-6360-7430

Kostiantyn V. Avramov, A. Pidhornyi Institute of Mechanical Engineering Problems of NASU (2/10, Pozharskyi str., Kharkiv, 61046, Ukrainе), Kharkiv National University of Radio Electronics (14, Nauky ave., Kharkiv, 61166, Ukraine), e-mail: kvavramov@gmail.com, ORCID: 0000-0002-8740-693X

Oleksandr F. Salenko, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (37, Peremohy ave., Kyiv, 03056, Ukraine), ORCID: 0000-0002-5685-6225

Iryna V. Biblik, A. Pidhornyi Institute of Mechanical Engineering Problems of NASU (2/10, Pozharskyi str., Kharkiv, 61046, Ukrainе), e-mail: miles@ipmach.kharkov.ua, ORCID: 0000-0002-8650-1134

Abstract

An approach to the experimental and computational study of the shear properties of honeycomb cores (HC) produced using Fused Deposition Modeling (FDM) technology is proposed. The experimental approach is based on a new sample type for testing HCs for shear. This sample contains two HCs and three steel plates. Shear tests are carried out in the TiraTest 2300 universal tensile testing machine. The HCs are made of ULTEM 9085 and PLA with FDM technology, which is implemented in the 3D Fortus 900 system. The tests resulted in obtaining the shear properties of the HCs by averaging the stress-strain curves of five samples. As follows from the analysis of the experimental results, brittle destruction of an HC is observed. Before its destruction, the value of shear deformation for samples made of PLA was 0.0134, and for samples made of ULTEM, 0.0257. The experimental analysis was accompanied by numerical finite element (FE) modeling of shear experiments, taking into account the deformation of the equipment. With the FE modeling of the experiments, to describe the behavior of the samples, it is necessary to take into account the influence, on the measurements of the shear properties, of the equipment and the deformation of each honeycomb cell. The deformation of three plates was taken into account; the elastic properties of the adhesive joint were not taken into account. A computer model of the deformation of the HCs with equipment was built using ANSYS Design Modeler. With FE modeling, only the elastic behavior of the HCs was considered.

Keywords: honeycomb, additive technologies, shear, stress-strain curve.

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References

1. Chen, Y., Li, T., Jia, Z., Scarpa, F., Yao, C.-W., & Wang, L. (2018). 3D printed hierarchical honeycombs with shape integrity under large compressive deformations. Materials and Design, vol. 137, pp. 226–234. https://doi.org/10.1016/j.matdes.2017.10.028.
2. Hohe, J. & Becker, W. (2002). Effective stress-strain relations for two-dimensional cellular sandwich cores: Homogenization, material models, and properties. Applied Mechanics Reviews, vol. 55, iss. 1, pp. 61–87. https://doi.org/10.1115/1.1425394.
3. Vougiouka, G., Rodrigues, H., & Guedes, J. M. (1998). Prediction of elastic properties of sandwich panels using a homogenization computational model. In: Vautrin, A. (eds.) Mechanics of Sandwich Structures. Springer, Dordrecht, pp. 147–154. https://doi.org/10.1007/978-94-015-9091-4_17.
4. Gibson, L. J., Ashby, M. F., Schajer, G. S., & Robertson, C. I. (1982). The mechanics of two-dimensional cellular materials. Proceedings of the Royal Society London A, vol. 382, pp. 25–42. https://doi.org/10.1098/rspa.1982.0087.
5. Masters, I. G. & Evans, K. E. (1996). Models for the elastic deformation of honeycombs. Composite Structures, vol. 35, iss. 4, pp. 403–422. https://doi.org/10.1016/S0263-8223(96)00054-2.
6. Catapano, A. & Montemurro, M. (2014). A multi-scale approach for the optimum design of sandwich plates with honeycomb core. Part I: Homogenisation of core properties. Composite Structures, vol. 118, pp. 664–676. https://doi.org/10.1016/j.compstruct.2014.07.057.
7. Grediac, M. (1993). A finite element study of the transverse shear in honeycomb core. International Journal of Solids and Structures, vol. 33, iss.13, pp. 1777–1788. https://doi.org/10.1016/0020-7683(93)90233-W.
8. Foo, C. C., Chai, G. B., & Seah, L. K. (2007). Mechanical properties of Nomex material and Nomex honeycomb structure. Composite Structures, vol. 80, iss. 4, pp. 588–594. https://doi.org/10.1016/j.compstruct.2006.07.010.
9. Balawi, S. & Abot, J. L. (2008). The effect of honeycomb relative density on its effective in-plane elastic moduli: An experimental study. Composite Structures, vol. 84, iss. 4, pp. 293–299. https://doi.org/10.1016/j.compstruct.2007.08.009.
10. Bates, S. R. G., Farrow, I. R., & Trask, R. S. (2019). Compressive behaviour of 3D printed thermoplastic polyurethane honeycombs with graded densities. Materials and Design, vol. 162, pp. 130–142. https://doi.org/10.1016/j.matdes.2018.11.019.
11. Derevianko, I., Avramov, K., Uspenskyi, B., & Salenko, A. (2021). Eksperymentalnyi analiz mekhanichnykh kharakterystyk detalei raket-nosiiv, vyhotovlenykh za dopomohoiu FDM adytyvnykh tekhnolohii [Experimental analysis of mechanical characteristics of parts of launch vehicles manufactured using FDM additive technologies]. Tekhnichna mekhanika – Technical Mechanics, iss. 1, pp. 92–100 (in Ukrainian). https://doi.org/10.15407/itm2021.01.092.
12. Avramov, K. V. (2018). Nonlinear vibrations characteristics of single-walled carbon nanotubes by nonlocal elastic shell model. International Journal of Non-Linear Mechanics, vol. 107, pp. 149–160. https://doi.org/10.1016/j.ijnonlinmec.2018.08.017.
13. Avramov, K. V. & Gendelman, O. V. (2009). Interaction of linear system with snap-through vibrations absorber. International Journal of Non-Linear Mechanics, vol. 44, iss. 1, pp. 81–89. https://doi.org/10.1016/j.ijnonlinmec.2008.09.004.

Received 22 October 2021

Published 30 December 2021