Three dimensional (3D) spacer fabrics are constructed from two dimensional (2D) woven fabrics connected by 2D woven crosslink fabrics using thermoplastic high performance hybrid yarns. Spacer fabrics present great potential in the efficient production of fiber reinforced plastic composites with adjustable mechanical properties targeted for specific applications in Lightweight engineering. The structure of the weave and the stresses placed on the fibers during the weaving process impact the mechanical properties of the finished composite. This study shows that the mechanical properties can be significantly controlled and adjusted by pattern development of the individual 2D composite structures from the 3D spacer fabric preforms constructed of orthogonal multilayer weaves (non-crimped fiber arrangement and a gentle weaving process). Electrically conductive fibers are woven directly into various layers of the 2D woven fabrics and are therefore successfully integrated during production. This forms the basis for function integration in the composite. The weaving technology ensures a reliable contact of the conductive fibers allowing sensor networks to be integrated into the fabric for online monitoring of the fiber reinforced plastic composite component.
Zusammenfassung
Mit in Verbundwerkstoffen eingebettetem Kohlenstoff-Filamentgarn können mittlere Dehnungen großer Messflächen erfasst werden. Zur Abschätzung der messtechnischen Praxistauglichkeit wurden in einen Glasfaser-Polypropylen-Verbundwerkstoff integrierte Kohlenstoff-Filamentgarn-Dehnungssensoren hinsichtlich der erreichbaren Messgenauigkeit bei Kurzzeitmessungen (maximal 15 Minuten Messzeit) untersucht. Anhand vergleichender Dehnungsmessungen mit Metallfolien-Dehnungsmessstreifen wurden der Übertragungsfaktor, der Linearitäts-, Hysterese- und Kriechfehler sowie die Wiederholbarkeit bestimmt. Die Einflüsse des Verbundwerkstoffes und der Temperatur wurden ebenso untersucht wie verschiedene Technologien zur elektrischen Kontaktierung von Kohlenstoff-Filamentgarn.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.