Steel/highperformance/thermoplastic fibre-hybrid composites dispersed at the filament level with tailored mechanical properties and high structural integrity

• Applicants: Professor Dr.-Ing. Chokri Cherif; Dr.-Ing. Sebastian Schmeer
• Subject Area: Polymeric and Biogenic Materials and Derived Composites ; Materials in Sintering Processes and Generative Manufacturing Processes
• Term: from 2020 to 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 441549528

Within the desired research project, a three-phase material will be developed and investigated; this material will be hybridised at the filament level and consist of metallic as well as non-metallic reinforcement filaments in addition to a thermoplastic matrix, which will be inserted as filaments. At the level of the semi-finished textile product, procedural advantages – such as short flow paths and processing times as well as excellent drapeability during component manufacturing – will be combined with weldability and multifunctionality at the material level. Therefore, the mechanical properties and potential of this new class of materials will be thoroughly investigated by means of experimental and extensive numerical characterizations. Another main objective of this research project is the development and investigation of technologies for the realization of three-phase, highly hybridised fibre-hybrid composites based on air-jet and spread-folding technology. The gained knowledge and material understanding, ranging from the surface modification of metallic filament yarns to the hybridization and consolidation processes and the numerical, micromechanical modeling of fibre-hybrid composites, can be used in future to achieve composites with tailored mechanical properties and a specifically adjustable failure behaviour.

• DFG Programme: Research Grants