PSI - Issue 63

Petr Lehner et al. / Procedia Structural Integrity 63 (2024) 43–50

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Fig. 5. Von-Misses stress on the 3D printed part. Model PC01 on top, PC02 on the middle, and PC03 on the bottom.

4. Conclusions This paper presents a basic view of the numerical modelling of a 3D printed joint applicable to a simple building structure. The aim was to highlight some fundamental requirements and present a process that will be applicable to other selected structures and parts. From the initial steps of the numerical analysis, it was possible to draw some conclusions that need to be considered in future research. Primarily, what needs to be modelled and why is crucial. While this may be as vague information, in 3D printing there is a big difference in every change in geometry or boundary conditions. Another very necessary requirement is the correct understanding and use of the material information provided by the manufacturer. In the paper, it is presented that the difference in parameters compared to the datasheet is 20%, but it is not clearly defined that this is an error. On the contrary, the special behaviour of 3D printed materials, which depends on the printing process itself, has to be taken into account. Another very necessary requirement is to correctly understand and use the material information provided by the manufacturer. The article presents that the difference of parameters from the datasheet is 20%, but it is not clearly defined that this is an error. In contrast, the special behaviour of 3D printed materials needs to be taken into account, which depends on the printing process itself. Future research must focus on comparing numerical models and experimental tests, as well as case studies involving aspects of 3D printing such as delamination, heterogeneity, and brittleness. 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 SP2024/093. ANSYS, 2020. ANSYS Meshing User’s Guide [WWW Document]. ANSYS User Guide. URL https://customercenter.ansys.com/ (accessed 10.29.20). Arrêteau, M., Fabien, A., El Haddaji, B., Chateigner, D., Sonebi, M., Sebaibi, N., 2023. Review of Advances in 3D Printing Technology of Cementitious Materials: Key Printing Parameters and Properties Characterization. Buildings. https://doi.org/10.3390/buildings13071828 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 Cuevas, K., Chougan, M., Martin, F., Ghaffar, S.H., Stephan, D., Sikora, P., 2021. 3D printable lightweight References