Citation link:
Publisher DOI: https://doi.org/10.1016/j.matdes.2021.110281
https://media.suub.uni-bremen.de/handle/elib/6516
Publisher DOI: https://doi.org/10.1016/j.matdes.2021.110281

Biomimetic approaches towards lightweight composite structures for car interior parts
Authors: | Hoffmann, Katrin Greta Haag, Katharina Müssig, Jörg ![]() |
Abstract: | Due to good density specific mechanical properties and low carbon footprint, natural fibre-reinforced plastic composites made from fleeces and felts are frequently used as automotive interior parts. The industry targets further mass reduction. Following a biomimetic technology-pull approach, natural fibre-reinforced polypropylene plates with improved lightweight potential were produced using compression moulding. Best results were obtained for a sandwich structure with thin, unidirectional flax fibre layers surrounding a needle felt based core. It was inspired by the carapace structure of the red-eared slider Trachemys scripta elegans. The lay-up performed well, not only with a high density specific flexural stiffness of 2.33 GPa1/3 cm3/g, strength of 9.46 MPa1/2 cm3/g, and energy dissipation but also through less abrupt failure due to an asymmetric orientation of unidirectional fibres in the two face sheets. Combined with a mass-reduced needle felt as a core, this concept displays a promising and unconventional approach for further mass reduced, sustainable interior panels used as non-visible and visible design elements in the vehicle. |
Keywords: | Natural fibre-reinforced plastic; Composite material; Needle felt; Sandwich structure | Issue Date: | 2021 | Publisher: | Elsevier Science | Journal/Edited collection: | Materials & Design | Issue: | 212 | Start page: | 110281 | Type: | Artikel/Aufsatz | ISSN: | 02641275 | Institution: | Hochschule Bremen | Faculty: | Hochschule Bremen - Fakultät 5: Natur und Technik |
Appears in Collections: | Bibliographie HS Bremen |
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