Stress peaks in components subject to load represent a significant challenge when using fiber composite materials. These peaks can be eliminated by surface load transmission. As part of the project KraSchwing, innovative load transmission options are compared with a focus on vibration stress. Adhesive joints serve as a reference structure in this project.
Incorporating elastomer layers into laminates and fitting rosettes to reinforce bearing surfaces around bolt holes using wet-winded, pre-impregnated loops are being examined as new options for adapting connection points. New approaches to connecting points in hybrid structures are thus being investigated and compared with conventional approaches.
KraSchwing - Optimisation of load transmission in fiber composite structures subject to vibration stress
Funded by the Baden-Württemberg State Ministry for Finance and Economy, the research field Lightweight and Hybrid Design Methods is investigating innovative approaches for joints in hybrid structures with project partners in research and industry. The research institutes are the Institute for Vehicle System Technology at the Karlsruhe Institute for Technology (KIT-FAST) and the Natural and Medical Sciences Institute (NMI) at the University of Tübingen. Industry partners are CADCON Ingenieurgesellschaft mbH & Co. KG, Daimler AG, Gummiwerk KRAIBURG GmbH & Co. KG, SCA Schucker GmbH & Co. KG, Sika Deutschland GmbH, and Fa 3FM8. The project is also supported by the Verein Allianz Faserbasierter Werkstoffe Baden-Württemberg e.V., a cross-sectional technology network.