About this Abstract |
Meeting |
Advances in Welding and Additive Manufacturing Research 2022
|
Symposium
|
Advances in Welding and Additive Manufacturing Research 2022
|
Presentation Title |
Development of Robust and Physics-Based Integrated Models of Automotive Lap Joining |
Author(s) |
Eric Brizes, Antonio Ramirez |
On-Site Speaker (Planned) |
Eric Brizes |
Abstract Scope |
The automotive industry uses integrated models of joining processes and microstructural evolution to predict material property gradients and ultimately the mechanical performance of multi-sheet and multi-material lap joints. Many of these integrated models where first designed for simulation of the resistance spot welding (RSW) of steels, however the demand for light-weighting within vehicle structures has increased the use of low-density alloys like aluminum and non-conventional joining methods like friction element welding and self-piercing rivets. Improvements can be made to the methodology used in state-of-the-art integrated modeling software that will allow for increased applicability to a wider range of materials and processes. Such improvements that are evaluated in this work include: validation of RSW process model temperature outputs using high-speed thermography, modeling phase transformations using kinetics calibrated from time-temperature-transformation (TTT) diagrams that are calculated using CalPhaD-based techniques, and determination of the change in a material’s flow stress behavior when subjected to welding and joining thermal cycles. The aim is to facilitate the development of a more general yet still accurate integrated modeling framework that can be used as a joint optimization and decision-making tool for design engineers in the automotive industry that have limited knowledge of materials and weldability. |
Proceedings Inclusion? |
Undecided |