PSI - Issue 73

Martin Krejsa et al. / Procedia Structural Integrity 73 (2025) 81–86 Martin Krejsa, Petr Lehner, Jakub Flodr / Structural Integrity Procedia 00 (2025) 000–000

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Fig. 3. Force-displacement diagram obtained from experiments.

Fig. 4 shows photographs of the clinch section of the specimen marked S4 after the test and cutting. From the cross section of the clinch joint, it can be seen that the failure occurred at the neck of the clinch joint. The lower part separated in the left part due to a combination of shear and bending stresses and initiated the failure. In the right part of the cross section, tensile failure occurs.

Fig. 4. Cross-sectional dimensions of the clinch connection (top); cross-sectional detail of the clinch connection (bottom left); detail of the clinch connection after the test (bottom right).