Abstract
This paper contains a comparison of the flexural strength results of two different samples. Both samples were made using additive manufacturing, from ABS (acrylonitrile butadiene styrene) material with the inclusion of an unknown filler designated as X. They also have in common that they are divided into two groups, the first group with a material infill of 100 %, and the second group with a material infill of 50 %. In order to determine that the material infill really affects the flexural strength results, the samples are differentiated by their shape. The first sample consists of tiles, while the second sample consists of pipes. The samples are printed vertically, which doesn’t change the material’s inherent mechanical qualities but does change the amount of infill and the strength of the bond between the layers. The difference between the values of the stress at failure of the material in the tile group is approximately 20 %, while in the tube group this difference is approximately 6 %. We can conclude that filling with the material in the range of 50 to 100 % during the production of pipes has an insignificant effect on bending strength, while this is not the case with plate samples. Based on this, there definitely is a significant influence of geometry when determining flexural strength. The idea for further research should be to measure the influence of samples treated with acetone on their flexural strength.
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The authors would like to thank the support from European Union’s Horizon 2020 research and innovation program (H2020-WIDESPREAD-2018, SIRAMM) under grant agreement No. 857124.
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Isaak Trajkovic is Ph.D. student of the Faculty of Technology and Metallurgy, University of Belgrade. The main area of research that he carries out as part of his doctoral dissertation is based on the determination of fracture mechanics parameters on ring-shaped test tubes with a crack.
Aleksandra Dragičević is Ph.D. student and teaching assistant at the Faculty of Mechanical Engineering, University of Belgrade. The main area of her doctoral dissertation is based on additive manufacturing with a focus on generative design.
Ivana Medojević is Ph.D. student at the Faculty of Mechanical Engineering, University of Belgrade. The main area of her research of the doctoral dissertation is based on machine and deep learning in biotechnical systems.
Goran Mladenović is Associate Professor at the Department of Production Engineering, Faculty of Mechanical Engineering, University of Belgrade. The main area of his research is information systems for production planning and management.
Miloš Milošević is Scientific advisor at the Innovation Center of the Faculty of Mechanical Engineering. The main area of his research is digital image correlation method for non-contact determination of displacements and deformations.
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Trajković, I., Dragičević, A., Medojević, I. et al. The influence of material infill on ABS-X flexural strength. J Mech Sci Technol 37, 5577–5581 (2023). https://doi.org/10.1007/s12206-023-2310-8
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DOI: https://doi.org/10.1007/s12206-023-2310-8