PSI - Issue 73

Dominik Gřešica et al. / Procedia Structural Integrity 73 (2025) 27 – 32 Dominik Gřešica, Petr Lehner, David Juračka / Structural Integrity Procedia 00 (2025) 000 – 000

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4. Conclusions This paper presents a parametric numerical study that investigated the properties of five different geometric variants of 3D printed joints for timber frame structures under simulated three-point bending conditions. The numerical analysis performed using FEM revealed significant differences in load transfer behaviour between the variants, particularly in terms of stress distribution within the 3D printed member, the timber prism and the steel studs. The results, shown in Figures 4 and 5, highlight the different load carrying capacities of the different joint configurations, with the V01 variant exhibiting the best performance under the defined boundary conditions and loading scheme. The findings provide valuable insights for the design of future experimental verification through tensile, compression and flexural tests. Further research could investigate the effect of altered load orientation, loading schemes, and spans on the performance of joint variants. Acknowledgements This research and this paper were funded by the Ministry of Education, Youth and Sports of the Czech Republic in Student Grant Competition through VSB – Technical University of Ostrava – grant number: SGS SP2025/075. References ANSYS, 2020. ANSYS Meshing User’s Guide [WWW Document]. ANSYS User Guide. URL https://customercenter.ansys.com/ (accessed 10.29.20). Bathe, K.-J., 2008. Finite Element Method, in: Wiley Encyclopedia of Computer Science and Engineering. John Wiley & Sons, Inc., Hoboken, NJ, USA. https://doi.org/10.1002/9780470050118.ecse159 Dedek, J., Juračka, D., Bujdoš, D., Lehner, P., 2024. Mechanical Properties of Wooden Elements with 3D Printed Reinforcement from Polymers and Carbon. Materials 17. https://doi.org/10.3390/ma17061244 Ernur, A., Akiner, İ., Akiner, N., Zileska -Pancovska, V., 2022. Using wood as a new generation building material in the context of sustainable development. Zastita materijala 63, 68 – 78. https://doi.org/10.5937/zasmat2201068A Hu, B., 2021. Original Prusa i3: The Self-Replicating 3D Printer. Operations Management Education Review 15. https://doi.org/10.4135/9781529610796 Juracka, D., Kawulok, M., Bujdos, D., Krejsa, M., 2022. Influence of Size and Orientation of 3D Printed Fiber on Mechanical Properties under Bending Stress. Periodica Polytechnica Civil Engineering 66. https://doi.org/10.3311/PPci.19806 Lehner, P., Pařenica, P., Juračka, D., Krejsa, M., 2024. Numerical analysis of 3D printed joint of wooden structures regardin g mechanical and fatigue behaviour. Fracture and Structural Integrity 19, 151 – 163. https://doi.org/10.3221/IGF-ESIS.71.11 Mitterpach, J., Igaz, R., Štefko, J., 2020. Environmental evaluation of alternative wood -based external wall assembly. Acta Facultatis Xylologiae Zvolen 62, 133 – 149. https://doi.org/10.17423/afx.2020.62.1.12 Nicolau, A., Pop, M.A., Coșereanu, C., 2022. 3D Printing Application in Wood Furniture Components Assembling. Materials 15. https://doi.org/10.3390/ma15082907 Obara, P., 2018. Verification of Orthotropic Model of Wood. Archives of Civil Engineering 64, 31 – 44. https://doi.org/10.2478/ace-2018-0027 Priore, R., 2016. Prusa i3 MK2. makezine.com. Prusa i3, 2022. Original Prusa i3 MK3S+ 3D printer | Original Prusa 3D printers directly from Josef Prusa [WWW Document]. PRUSA Research. Su, A., Al’Aref, S.J., 2018. History of 3D Printing. 3D Printing Applications in Cardiovascular Medicine 1 – 10. https://doi.org/10.1016/B978-0 12-803917-5.00001-8 Yuan, Q., Liu, Z., Zheng, K., Ma, C., 2021. Chapter 5 - Wood, in: Civil Engineering Materials.