| 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 |
Fatigue Characteristics and Failure Mechanism of Self-piercing Riveting DP590 and AA6061 Plates |
| Author(s) |
Zhichao Huang, Yinglian Jia, Jiamei Lai |
| On-Site Speaker (Planned) |
Zhichao Huang |
| Abstract Scope |
Duplex steel, aluminium alloy, carbon fiber reinforced composites and other materials have become the preferred lightweight materials for automobiles. The self-piercing riveted joints of dual phase steel DP590 and aluminium alloy AA6061 were selected for fatigue tests, and the fatigue properties of the joints were analyzed. The typical fatigue failure fractures were observed by scanning electron microscopy(SEM), and the micro failure mechanism of the joints was analyzed. The results show that the fatigue properties of self-piercing riveted joints are different with different upper substrates. The failure modes of the joints are all fracture of the lower substrates. When the upper substrate is DP590 plate under high fatigue load, the cracks are easy to initiate in the rivet area. The cracks of the other self-piercing riveted joints originate on the side of the lower plate and extend along the rivet area to the width of the substrate. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |