AI Article Synopsis
- The study explores the mechanical properties and production of fiber metal laminates (FMLs) made from 3D printed composites, which combine metal and composite materials mainly for aerospace applications.
- The researchers used a Markforged 3D printer to create continuous carbon fiber reinforced composites and integrated them with layers of aluminum alloy to develop innovative FMLs.
- Testing reveals that these FMLs have a tensile strength that lies between their component materials, and their impact performance is better than that of plain aluminum and the composites alone, attributed to their ability to absorb energy through deformation and delamination.
Article Abstract
The production and mechanical properties of fiber metal laminates (FMLs) based on 3D printed composites have been investigated in this study. FMLs are structures constituting an alternating arrangement of metal and composite materials that are used in the aerospace sector due to their unique mechanical performance. 3D printing technology in FMLs could allow the production of structures with customized configuration and performance. A series of continuous carbon fiber reinforced composites were printed on a Markforged system and placed between layers of aluminum alloy to manufacture a novel breed of FMLs in this study. These laminates were subjected to tensile, low velocity and high velocity impact tests. The results show that the tensile strength of the FMLs falls between the strength of their constituent materials, while the low and high velocity impact performance of the FMLs is superior to those observed for the plain aluminum and the composite material. This mechanism is related to the energy absorption process displayed by the plastic deformation, and interfacial delamination within the laminates. The present work expects to provide an initial research platform for considering 3D printing in the manufacturing process of hybrid laminates.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700548 | PMC |
| http://dx.doi.org/10.3390/ma13225264 | DOI Listing |
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