| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Forming-induced Residual Stress Influence on Material Properties of Roll-Formed High Strength Martensite Steels |
| Author(s) |
YONG SUN |
| On-Site Speaker (Planned) |
YONG SUN |
| Abstract Scope |
Martensitic steel is widely used but less understood in aspects of post-formed material properties in the automotive industry even though the steels show great ductility in roll forming. This paper presents a numerical and experimental insight into the forming-induced longitudinal residual stress and its impact on material property variation in a roll-formed high strength MS1180 automotive rocker panel. The FEA results are validated by neutron diffraction residual stress measurements. The numerical model is used to analyze the full evolution of residual stress during roll forming and its impact on the material properties with major focus on product of strength and elongation. It is found that the flower design, especially the overbending stage plays a significant role in the formation of residual stress and material properties. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |