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On the development of an intrinsic hybrid composite

: Kießling, Robert; Ihlemann, Jörn; Riemer, Matthias; Drossel, Welf-Guntram; Scharf, Ingolf; Lampke, T.; Sharafiev, Semen; Pouya, M.; Wagner, Martin Franz-Xaver

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TU Chemnitz, Institut für Werkstoffwissenschaft und Werkstofftechnik:
18th Chemnitz Seminar on Materials Engineering - 18. Werkstofftechnisches Kolloquium 2016 : Chemnitz, 10 - 11 March 2016
Bristol: IOP Publishing, 2016 (IOP conference series. Materials science and engineering 118)
Art. 012017, 7 S.
Seminar on Materials Engineering <18, 2016, Chemnitz>
Werkstofftechnisches Kolloquium <18, 2016, Chemnitz>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWU ()
hybrid metal composites; forming technologies; form fit elements

Hybrid parts, which combine low weight with high strength, are moving into the focus of the automotive industry, due to their high potential for usage in the field of crash-relevant structures. In this contribution, the development of an intrinsic hybrid composite is presented, with a focus on the manufacturing process, complex simulations of the material behaviour and material testing.
The hybrid composite is made up of a continuous fibre-reinforced plastic (FRP), in which a metallic insert is integrated. The mechanical behaviour of the individual components is characterised. For material modelling, an approach is pointed out, which enables modelling at large strains by directly connected rheological elements. The connection between the FRP and the metallic insert is realised by a combination of form fit and adhesive bonds. On the one hand, adhesive bonds are generated within a sol gel process. On the other hand, local form elements of the metallic insert are pressed into the FRP. We show how these form elements are generated during the macroscopic forming process. In addition, the applied sol gel process is explained. Finally, we consider design concepts for a specimen type for high strain testing of the resulting interfaces.