PSI - Issue 68

Lea Aydin et al. / Procedia Structural Integrity 68 (2025) 1280–1286

1286

L. Aydin and S. Marzi / Structural Integrity Procedia 00 (2024) 000–000

7

comprehensive analysis of adhesive behavior, providing the opportunity for robust further statistical evaluation - from just a few experiments. Furthermore, the method proved successful for mode III testing by Geisel and Marzi (2024) as well as in accurately evaluating crack propagation, which was also proven before by Kididane et al. (2024). The next step is to perform numerical simulations using the derived TSLs to validate the experimental method. These sim ulations are expected to help verify the accuracy and reliability of the method, contributing to a deeper understanding andmore e ff ective application of cohesive zone modeling in adhesive materials.

Acknowledgements

The authors thank Hessian Ministry of Science and Research, Arts and Culture as well as the Strategic Re search Fond and Sabine Wenig ( Sika Automotive AG , Switzerland) for supplying the adhesive.

References

Geisel, L.D., Marzi, S., 2024. Obtaining traction-separation laws of adhesive joints using optical fiber strain measurements - Part B (Mode III). Structural Integrity Procedia. Cabello, M., Turon, A., Zurbitu, J., Renart, J., Sarrado, C., Mart´ınez, F., 2017. Progressive failure analysis of DCB bonded joints using a new elastic foundation coupled with a cohesive damage model. European Journal of Mechanics A / Solids, 63 22e35. https://doi.org/10. 1016/j.euromechsol.2016.12.004 Campilho, R.D.S.G., Banea, M.D., Neto, J.A.B.P., da Silva, L.F.M., 2013. Modelling adhesive joints with cohesive zone models: e ff ect of the cohesive law shape of the adhesive layer. International Journal of Adhesion & Adhesives, 44 (2013) 48–56. https://doi.org/10.1016/j. ijadhadh.2013.02.006 Jumel, J., Budzik, M.K., Shanahan, M.E.R., 2011. Beam on elastic foundation with anticlastic curvature: Application to analysis of mode I fracture tests. Engineering Fracture Mechanics, 78(18):3253–3269. http://dx.doi.org/10.1016/j.engfracmech.2011.09.014 Kididane, I., Ladwig, N., Marzi, S., Dual-actuator mixed-mode bending tests on structural adhesive joints. Engineering Fracture Mechanics, 301:110017. https://doi.org/10.1016/j.engfracmech.2024.110017 Shokrieh, M.M., Heidari-Rarani, M., 2011. A comparative study for beams on elastic foundation models to analysis of mode-I delamination in DCB specimens. Structural Engineering and Mechanics, Volume 37, Number 2, January25 2011, pages 149-162. https://doi.org/10.12989/ sem.2011.37.2.149 Sørensen, Bent F., Jacobsen, Torben K., 2013. Determination of cohesive laws by the J integral approach. Engineering Fracture Mechanics, 70 (2003) 1841–1858. http://dx.doi.org/10.1016/S0013-7944(03)00127-9 Sun, F., Blackman, B.R.K., 2021. Using digital image correlation to automate the measurement of crack length and fracture energy in the mode I testing of structural adhesive joints. Engineering Fracture Mechanics, 255 107957. Suo, Z., Bao, G., Fan, B., 1990. Journal of the Mechanics and Physics of Solids Volume 40, Issue 1, Pages 1-16. https://doi.org/10.1016/ j.engfracmech.2021.107957 Wang, J., Zhang, C., Three-parameter, elastic foundation model for analysis of adhesively bonded joints. International Journal of Adhesion & Adhesives 29, 495–502. https://doi.org/10.1016/j.ijadhadh.2008.10.002