Initial situation:
In the field of aerospace technology, the topic of functional integration is playing an increasingly important role in the development of new products. The aim is to reduce the number of components and production steps by allowing individual components to fulfil several functions. Fibre composites often form the basis of high-strength structures. At the same time, the demand for electrical and electronic functions in aircraft is increasing.
As part of a research collaboration with renowned industrial partners, the Wehrwissenschaftliches Institut für Werk- und Betriebsstoffe (WIWeB) is working together with the Institut für Leichtbau (LRT6) to investigate the processing of functionalised fibre-reinforced plastics (FRP). The aim of the current research is to integrate electrically conductive layers in the fibre composite that can be used for various applications. For this purpose, semi-finished products are printed and integrated into the fibre composite structure. Initial printing tests with subsequent integration into fibre composites have been carried out and the electrical properties are to be tested and optimised in the future.
The aim of the work is to investigate the mechanical properties of the bond between the printed film and the fibre composite. In the first step, various films are printed with different inks and cured with a GRP prepreg. The finished structure is then analysed using destructive testing methods (short beam test and tensile shear test). In the second step, the mechanical strength of the composite is to be optimised through the surface treatment of the film and the ink using various methods, such as plasma processes.
The work is mainly carried out at the WIWeB site in Erding.
The following work items (WPs) form the content of the work:
- WP1: Literature research in the field of fibre composites Testing and planning of the test series
- WP2: Production of the composite
- WP3: Mechanical testing of the composite
- WP4: Optimisation of the surface adhesion
- WP5: Evaluation of the measurement results
- WP6: Documentation of the results
Contact:
Bernhard Emmert, M. Sc.
