WOT researchers significantly involved in the development of an intrinsic hybrid composite

Scientists from the three professorships of Solid Mechanics, Materials and Surface Technology and Materials Science at Chemnitz University of Technology and the Fraunhofer Institute for Machine Tools and Forming Technology IWU Chemnitz have designed an intrinsic hybrid composite for crash-loaded structural components and produced it in a near-series production process.

The composite counteracts the shortcoming of fibre-reinforced composites of absorbing little energy in the event of a crash. In the newly developed concept, fibre-reinforced plastic panels were therefore designed to be crash-proof using metallic inserts. However, this was done in particular against the background of resource-efficient production. As a result, it was possible to combine previously sequential process steps into one process step using innovative form-fit elements, whereby the form-fit elements straighten up during the creation of the macroscopic component geometry due to the effect of a tensile force from the insert and anchor themselves firmly in the plastic component. The resulting positive fit significantly improves the force transmission between the metal and plastic components. In addition, the metal insert is coated in a sol-gel process suitable for large-scale production, which also reliably prevents contact corrosion and improves the adhesive bond between the metal and plastic.

Further information can be found in the central press release at
https://www.tu-chemnitz.de/tu/pressestelle/aktuell/9695

The research results can also be found in an illustrative video, which can be viewed at the following address:
https://www.youtube.com/watch?v=xEDNT64D5_4

Picture (Photo: Jacob Müller)
The metallic insert with upright moulded closing elements.

18.9.2019 – Projects of the professorship ( thomas.grund@mb… )