Title: Innovative Concept for Insert Integration in SMC Applications to Increase Pull-Out Forces

Authors: Marc Mayer, Jesper Buck, Marc Fette, Guido Kalies

DOI: 10.33599/nasampe/s.21.0568

Abstract: The sheet molding compound (SMC) technology offers a variety of advantages. In addition to the reproducible production of complex geometries, the direct integration of functions, such as inserts integration during the pressing process, considerably reduces the post-processing effort. In today's standard processes, the inserts are placed in the preheated press tool before the SMC material is placed. The pressure exerted by the press causes the SMC to flow around the insert and embed it in the final component. With the embedded insert the applied load is mainly transferred from the insert to the resin-matrix rather than to the fibers. This applies in particular to the use of materials which do not exhibit any flow behavior, like nonwovens. Here, the insert is surrounded only by resin. This results in a clear optimization potential with regard to the force introduction elements. The newly designed insert actively penetrates the material and anchors itself through a targeted forming process. In the intended paper, the newly designed insert concept will be described in more detail and a comparison will be made between today's standard inserts and the self-anchored insert concept with regard to processing and the pull-out forces when using different SMC materials.

References: 1. Fette, M., Rademacker, T., Jüptner, G.: Nachhaltiger Einsatz von Carbonfasern dank CFK-Recycling. In: LightweightDesign, Springer Verlag, Berlin, Vol. 5, 2018, pp. 12-19. 2. Mayer, M., Fette, M., Buck, J., Wulfsberg, J., Steffen, S., Walther, A., Keun, C.: Use of recycled carbon fibers for lightweight construction applications with high fire protection requirements. In: Proceedings of International Workshop on Aircraft System Technologies (AST), 2019, Hamburg, Shaker Verlag, ISBN: 978-3-8440-6470-4. 3. Fette, M., Wulfsberg, J.P., Herrmann, A., Rademacker, T., Stöß, N.: Resource Efficient and Sustainable Production of Secondary Structure Aircraft Components by Using Recycled Carbon Fibers for Sheet Molding Compounds. In: Proceedings of the 10th SAMPE CHINA 2015 Conference, Peking, China, 2015, pp. 124-129.

Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000568

Pages: 10

Price: FREE