| 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 |
From Bridge to Bumper – Utilization of Pre-stressing during Manufacturing of Hybrid Sheet Metal Structures |
| Author(s) |
Henning Husmann, Peter Groche |
| On-Site Speaker (Planned) |
Henning Husmann |
| Abstract Scope |
Pre-stressing is often used in civil engineering to increase the load bearing capacity of bridges and buildings. In order to exploit this potential in sheet metal structures as well, efficient processes for joining and pre-stressing of tendons are required. Therefore, an approach to join and pre-stress fiber reinforced plastic (FRP) straps and sheet metals during a forming process is proposed. The FRP strap is placed around two collars drawn into the sheet. A punch plastically expands the collar, while the FRP strap is elastically elongated, resulting in beneficial pre-stresses after unloading due to the different spring-back. In this paper, the predominant mechanism is verified and parameters influencing the pre-stress are identified by experimental and numerical investigations. The hypothesis is investigated, that a customized pre-stress and thus a higher strength during the structure’s usage can be controlled by varying the collar’s expansion. Possible applications include bumpers and side impact beams. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |