Fracture Surface of 3D Printed Honeycomb Structures at Low Temperature Environments

Choi, Jong‐Min; Leeghim, Henzeh; Ahn, Ji-Hye; Choi, Dae-San; Lee, Chang-Yull

doi:10.1166/jnn.2020.17555

Cited by 1 publication

(1 citation statement)

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“…Choi et al [13] investigated samples fabricated by using ABS material and the structures constructed by the well-known honeycomb models using an FDM-Type 3D printer. To analyze the fracture surface of the samples constructed uniquely by using the 3D printer, the bending loads were applied to the samples at 30, −10, and −50 • C, respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Bending Behaviour of the Neovius Porous Structure Made Additively from Aluminium Alloy

et al. 2023

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Porous materials bring components not only direct advantages in the form of lightening of constructions, saving of production materials, or improvement of physical properties, but also secondary advantages, which are manifested as a result of their daily use, e.g., in aviation and the automotive industry, which is manifested in saving fuel and, thus, environmental protection. The aim of this article is to examine the influence of the volume ratio of a complex porous structure, the so-called Neovius, on bending properties. Samples with five different relative weights of 15, 20, 25, 30, and 50% (±1%) were fabricated from AlSi10Mg aluminum alloy by Direct Laser Metal Sintering (DLMS) technology. A three-point bending test until specimen failure was performed at ambient temperature on a Zwick/Roell 1456 universal testing machine. The dependences of the bending forces on the deflection were recorded. The maximum stresses, energy absorption, and ductility indexes were calculated to compare the bending behavior of beams filled with this type of complex cellular structure. The results showed that Neovius, with a relative weight of 50%, was much more brittle compared to the other samples, while the Neovius structure, with a relative weight of 30%, appeared to be the most suitable structure for bent components among those tested. This study is a contribution not only to the development of the space and aviation industry but also to the expansion of the knowledge base in the field of material sciences. This know-how can also provide a basis for defining boundary conditions in the simulation of behavior and numerical analyses of 3D-printed lightweight components.

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Section: Introductionmentioning

confidence: 99%