About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Forming and Joining of Advanced Sheet Metal Materials
|
| Presentation Title |
Performance and Weldability of Weld-Bonded 22MnB5 Steel: Simulation and Experimental Insights for the Automotive Industry |
| Author(s) |
Henry Leon-Henao, Nicholas Avedissian, Antonio Ramirez |
| On-Site Speaker (Planned) |
Henry Leon-Henao |
| Abstract Scope |
Weld bonding is a hybrid joining technique that combines structural adhesive bonding with resistance spot welding, offering the benefits of both chemical adhesion and metallurgical fusion. This study focuses on the mechanical performance of weld-bonded joints in 1.5 mm-thick 22MnB5 ultra-high-strength steel, using both experimental testing and finite element simulation. Lap shear and cross-tension tests were performed to evaluate joint strength and fracture behavior. Rheological properties and thermal degradation of the epoxy adhesive were experimentally characterized and integrated into a thermo-mechanical model using Simufact. The model accounts for adhesive squeeze-out, weld nugget formation, surface indentation, and hardness evolution by incorporating temperature-dependent material properties and phase transformation. Experimental validation showed accurate predictions of nugget size (within 0.4 mm), adhesive flow, and mechanical performance. Weld-bonded joints demonstrated superior energy absorption and load-bearing capacity compared to adhesive or spot welds alone. This integrated approach supports process optimization for hybrid joining in structural automotive applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Iron and Steel, Modeling and Simulation |