Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Impact Properties of Novel Natural Fibre Metal Laminated Composite Materials

2022; Multidisciplinary Digital Publishing Institute; Volume: 12; Issue: 4 Linguagem: Inglês

10.3390/app12041869

2076-3417

Luciano Machado Gomes Vieira, Yousef Dobah, Júlio César dos Santos, Túlio Hallak Panzera, Juan Carlos Campos Rúbio, Fabrizio Scarpa,

Textile materials and evaluations

Fibre metal laminates (FMLs) are lightweight structures with high structural performance and are suitable for many industrial applications. This work describes the impact behaviour of novel sisal fibre-reinforced aluminium laminates (SiRAL) and their dependence upon the orientations of the fibres, the composite core used and the surface treatment of the metal skins. A cold-pressing technique is used to produce SiRALs in six configurations. The FMLs here also have treated or untreated aluminium skins (2024 T3) and three different types of core materials (0°/90° fabric, ±45° fabric and random matt). The ±45° core treated SiRAL provides the highest energy absorption and deflection properties. The pre-treatment of aluminium skins using sandpaper, deep cleaning and primer significantly affects the delamination of the panels under bending impact. The findings reveal that the SiRAL concept is a promising multifunctional FML suitable for different applications that require lightweight, bending and impact performance, together with sustainability characteristics.