Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components

K. Yang, M. Biegler, L. Happe, M. Striewe, V. Olfert, D. Hein, M. Rethmeier, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.

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Abstract
<jats:p>Abstract. Liquid Metal Embrittlement (LME) cracking is a well-documented issue encountered during resistance spot welding (RSW) of zinc-coated advanced high-strength steels (AHSS) in automotive manufacturing. Given that existing research has predominantly focused on laboratory-scale samples and lacks investigation into the load-bearing capacity of joints under crash conditions, this study aims to fill these gaps by analyzing third-generation zinc-coated AHSS. S-Rail components were produced through stamping to replicate real-world manufacturing conditions and geometries of automotive parts. To account for the disturbances typically encountered in production, samples with LME cracks were intentionally fabricated. Subsequently, a modified three-point bending test, assisted by numerical simulations, was developed to effectively apply loads to the weld spots of the S-Rail components. Results from crash tests demonstrated that observed light crack severity does not significantly compromise the joint's load-bearing capacity or lead to earlier joint failure.</jats:p>
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Materials Research Proceedings
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52
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Yang K, Biegler M, Happe L, et al. Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components. In: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-42
Yang, K., Biegler, M., Happe, L., Striewe, M., Olfert, V., Hein, D., Rethmeier, M., & Meschut, G. (2025). Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-42
@inproceedings{Yang_Biegler_Happe_Striewe_Olfert_Hein_Rethmeier_Meschut_2025, title={Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components}, volume={52}, DOI={10.21741/9781644903551-42}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Yang, Keke and Biegler, Max and Happe, Linus and Striewe, Marius and Olfert, Viktoria and Hein, David and Rethmeier, Michael and Meschut, Gerson}, year={2025} }
Yang, Keke, Max Biegler, Linus Happe, Marius Striewe, Viktoria Olfert, David Hein, Michael Rethmeier, and Gerson Meschut. “Influence of Liquid Metal Embrittlement on Load-Bearing Capacity of Resistance Spot Welds under Crash Loads: A Study Based on S-Rail Components.” In Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-42.
K. Yang et al., “Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-42.
Yang, Keke, et al. “Influence of Liquid Metal Embrittlement on Load-Bearing Capacity of Resistance Spot Welds under Crash Loads: A Study Based on S-Rail Components.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-42.
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