PSI - Issue 73

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Jakub Flodr et al. / Procedia Structural Integrity 73 (2025) 9–13 Jakub Flodr , Petr Lehner, Dominik Gřešica, Martin Krejsa / Structural Integrity Procedia 00 (2025) 000–000

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The analytical calculation achieved a value of 1.85 kN through an iterative method. The difference between the analytically calculated value and the experimental data was 26%. 4. Conclusions This methodology can serve as a conservative method for verifying the load-bearing capacity of a clinch joint. The difference in these values can be mainly due to the selected yield strength. During the formation of a clinch joint, significant local strengthening occurs due to the shaping of the clinch joint. However, the disadvantage is the limited number of options for determining the strengthened yield strength without sophisticated research. A steel structure designer is not able to easily determine these values. Therefore, a conservative approach with a declared yield strength is more suitable and provides in a specific case with a 45% margin in the case of a manual assessment of a clinch joint loaded in shear and a 26% margin in the case of a clinch joint sample loaded in tension. Acknowledgements This contribution has been developed as a part of the research project of the Czech Science Foundation 25-15763S named: Structural steels behavior of thin-walled load-bearing elements during cold joining. References AISI-S100-12, 2012. North American Specification for the Design of Cold-formed Steel Structural Members. Bernuzzi, C., Maxenti, F., 2015. European alternatives to design perforated thin-walled cold-formed beam-columns for steel storage systems. J Constr Steel Res. https://doi.org/10.1016/j.jcsr.2015.02.021 Dubina, D., Ungureanu, V., Landolfo, R., 2013. Design of cold-formed steel structures: Eurocode 3: Design of steel structures. Part 1-3 design of cold-formed steel structures, Design of Cold-formed Steel Structures: Eurocode 3: Design of Steel Structures. Part 1-3 Design of cold formed Steel Structures. https://doi.org/10.1002/9783433602256 Flodr, J., Kałduński, P., Krejsa, M., Pařenica, P., 2017. Numerical modelling of clinching process. ARPN Journal of Engineering and Applied Sciences 12. Flodr, J., Lehner, P., Krejsa, M., 2020. Experimental and numerical evaluation of clinch connections of thin-walled building structures. Sustainability (Switzerland) 12. https://doi.org/10.3390/su12145691 Flodr, J., Pařenica, P., Lehner, P., Krejsa, M., 2019. Numerical analysis of double C profile connected by clinching technolo gy, in: AIP Conference Proceedings. https://doi.org/10.1063/1.5114118 Lambiase, F., Di Ilio, A., 2014. An experimental study on clinched joints realized with different dies. Thin-Walled Structures. https://doi.org/10.1016/j.tws.2014.08.004 Lei, L., He, X., Yu, T., Xing, B., 2019. Failure modes of mechanical clinching in metal sheet materials. Thin-Walled Structures 144, 106281. https://doi.org/10.1016/j.tws.2019.106281 Tomà, A., Sedlacek, G., Weynand, K., 1993. Connections in cold-formed steel. Thin-Walled Structures 16, 219–237. https://doi.org/10.1016/0263-8231(93)90046-D Varis, J.P., Lepistö, J., 2003. A simple testing-based procedure and simulation of the clinching process using finite element analysis for establishing clinching parameters. Thin-Walled Structures 41, 691–709. https://doi.org/10.1016/S0263-8231(03)00026-0