Biomimetic approaches towards lightweight composite structures for car interior parts
| Autor: | Katharina Haag, Katrin Greta Hoffmann, Jörg Müssig |
|---|---|
| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Polypropylene
Composite material Materials science Phormium tenax Mechanical Engineering Composite number Flexural rigidity Dissipation Compression (physics) Flax fibre Needle felt Core (optical fiber) chemistry.chemical_compound chemistry Sandwich structure Mechanics of Materials Slider Natural fibre-reinforced plastic TA401-492 General Materials Science Materials of engineering and construction. Mechanics of materials Trachemys scripta elegans |
| Zdroj: | Materials & Design, Vol 212, Iss, Pp 110281-(2021) |
| ISSN: | 0264-1275 |
| Popis: | 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 and 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. |
| Databáze: | OpenAIRE |
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