Abstract
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
| Original language | English |
|---|---|
| Article number | 1869 |
| Journal | Applied Sciences |
| Volume | 12 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 11 Feb 2022 |
Bibliographical note
Funding Information:Funding: This research was funded by the Brazilian Research Agencies, FAPEMIG (PPM), CAPES (PhD scholarship) and CNPq (PQ 309885/2019-1 and 394208/2019-1).
Funding Information:
Acknowledgments: The authors would like to thank the Brazilian Research Agencies, CNPq, FAPEMIG and CAPES, for the financial support granted, the University of Bristol and the Bristol Composites Institute for the support provided.
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
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