Lightweight Construction of Aluminum-cork Sandwich Composites in the Transportation Industry

Roma Goluch-Goreczna, Magdalena Urbaniak, Andrzej K. Bledzki, Cezary Borowiecki, Pawel Krysinski


Multilayer Plycork Aluminum (Al) composites were produced via vacuum bonding using a vacuum membrane press. The cladding material of the Plycork Al composites was an aluminum sheet, while the core material consisted of a natural cork agglomerate with varying thicknesses. Fire resistance tests and comparative static four-point bending tests were conducted on the Plycork Al composite samples. In addition, the characteristics of the deformation caused by the bending stress were compared between the Plycork Al composite and birch plywood. It was evident that this light composite can be applied as a structural material for transport purposes in railway vehicles due to its specific desirable properties. Additionally, the use of Plycork Al composites posed no toxic risk regarding the gases released during a fire and ensured vital operational safety because sharp edges did not form when the material was destroyed. In conclusion, this light multilayer composite can be frequently used to replace conventional materials employed in the transportation industry.


Natural cork; Aluminum; Plywood; Sandwich composites; Static four-point bending test; Fire resistance test; Transport

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