The work presented here is a preconcept study for a wheel suspension link in thermoplastic composite material. The further reasons for choosing a chassis part is possibilities to affect vehicles dynamics, load transfer and corrosion properties. The hollow shape makes bladder inflation moulding suitable for prototype manufacturing. To reduce cycle time inductive heating methods have been considered. This paper describes all development phases to prototype manufacturing and mechanical testing. Two material systems made of hybrid yarn have been used, polypropylene (PP)/glass fibre and polyamide 12 (PA12)/carbon fibre. The preform was produced from stacked layers of unidirectional warp knitted fabrics enclosed on each side by a weave. The lay-up is optimised by FE-analysis in order to reduce weight and still meet the requirements. The initial FE analysis showed that it was possible to save about 15-20 % in weight with a glass/PP composite and 50-60 % in weight with a carbon/PA12 composite in relation to the steel counterpart. Results from mechanical testing of component stiffness and strength are also presented.
Design and manufacturing wheel suspension links in thermoplastic composite made from a textile preform
Entwurf und Fertigung von Achslenkern aus thermoplastischen Verbundwerkstoffen auf Grundlage eines textilen Vorformlings
2002
12 Seiten, 6 Bilder, 1 Tabelle, 6 Quellen
Conference paper
English
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