TY - CHAP A1 - Seidlitz, Holger A1 - Czech, Adam A1 - Ulke-Winter, Lars A1 - Kroll, Lothar T1 - Thermomechanisches Ausformfügen für thermoplastische FVK T2 - Jahrbuch lighweightdesign - JOT - adhäsion: Top-Innovationen aus dem Leichtbau, der Oberflächen- und Klebtechnik Y1 - 2013 SN - 978-3-658-00985-4 SN - 3-658-00985-3 SP - 3 EP - 11 ER - TY - CHAP A1 - Seidlitz, Holger A1 - Ulke-Winter, Lars A1 - Kuke, Felix A1 - Ost, Lucas ED - Kumar, Sanjeev T1 - Material and Load Path Appropriate Joining Techniques for FRP/Metal Hybrid Structures T2 - Welding - Materials, Fabrication Processes, and Industry 5.0 N2 - Fiber-reinforced plastics (FRP) offer great lightweight construction potential. However, the anisotropic high-performance materials can only be fully utilized through the development of material-specific joining processes. A literature study shows that conventional methods such as screwing, riveting and bolting are unsuitable, since the load-bearing fibers are severed in the joining region. This leads to high-stress concentrations. To reduce these, a method is presented in which through holes are created in thermoplastic FRP by reorienting the fibers in this area around the point of disruption in accordance with the load path. For this purpose, the polymer matrix is softened locally by applying heat and penetrated with a needle or mandrel. Based on this, a technology for material-specific joining of FRP and metals has been developed in the form of thermomechanical flow drill joining. In this process, a mandrel forms a bush from the metal component and deflects the fibers of the locally softened organic sheet to suit the material. Cold metal transfer (CMT) pin welding is presented as another fully automatable joining process. In this method, the softened plastic component is penetrated with the welding wire, displacing the fibers in the joining area and realigning them to suit the load path. KW - fiber-reinforced plastics KW - thermomechanical flow drill joining KW - cold metal transfer pin welding KW - load path KW - fiber orientation Y1 - 2023 UR - https://www.intechopen.com/books/1002588 SN - 978-1-83769-870-7 SN - 978-1-83769-872-1 U6 - https://doi.org/10.5772/intechopen.1002239 PB - IntechOpen CY - London ET - 1. Auflage ER - TY - CHAP A1 - Köhler, Mathias A1 - Seidlitz, Holger ED - Gianaris, Nicholas J. ED - Russell, John D. T1 - Bio-Based Resins T2 - ASM handbook : 21 composites N2 - This article provides a general overview of bio-based resins, first examining biological sources for feedstocks of bio-based resin components, followed by a detailed description of five major resin classes (phenolic, furane, unsaturated polyester, epoxy, and benzoxazine resins) and their bio-based alternatives. It also describes the methods used to synthesize and modify the bio-based resins based on the biological feedstock, manufacturing processes, and properties of neat resins in comparison to fiber-reinforced composites. Then, the current work on novel bio-based vinyl ester, acrylic, and bismaleimide resins is highlighted. The article also reviews the work on the use of renewable resources to produce bio-resins with respect to composite applications, because only the development of bio-based resins leads to the production of sustainable green composites. KW - Bio-based Resins Y1 - 2026 SN - 978-1-62708-489-5 U6 - https://doi.org/10.31399/asm.hb.v21.a0007096 SP - 1 EP - 11 PB - ASM International CY - Materials Park, Ohio ER -