| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
|
| Presentation Title |
Multiscale Modeling of Self-piercing Riveting Process |
| Author(s) |
Georges Y. Ayoub, Andrey Ilinich |
| On-Site Speaker (Planned) |
Georges Y. Ayoub |
| Abstract Scope |
The need to produce fuel-efficient vehicles has resulted in a significant increase in the use of lightweight materials, such as aluminum alloys and advanced and ultra high strength steels (AHSS and UHSS) by the automotive industry. The self-pierce riveting (SPR) is an alternative to the welding technology and is nowadays widely used in the automotive industry. Accurate simulation procedures of SPR process is essential for the process design. The three factors involved in the SPR process simulation are a) tool geometry b) process parameters c) sheet metal properties. In this paper, a multiscale informed finite element model is used to simulate the riveting process. A crystal plasticity model is used to identify the yield stresses and the Lankford coefficients along different material directions. The results are used to identify the parameters of a 3D non-associated Hill flow rule that was implemented in the finite element simulation software as a user subroutine. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |