Initial experimental investigations on natural fibre reinforced honeycomb core panels

G. Petrone, S. Rao, S. De Rosa, B. R. Mace, F. Franco, D. Bhattacharyya

Research output: Contribution to journalArticlepeer-review

54 Scopus citations


The main attention of the present work is on eco-friendly honeycomb cores for sandwich panels. They are manufactured by combining flax fibres with polyethylene matrix; the analyses involve both reinforced and un-reinforced cores. Some experimental tests have been planned and carried out in order to qualify the modal characteristics of this important class of panels. Tests results, herein discussed, report a great improvement of reinforced cores (continuous-unidirectional and short-random) compared to un-reinforced ones in mechanical properties. An improvement in damping value is achieved by filling the core with wool fibres resulting in minimal weight increase. A summary of the impact and acoustic tests results of preview tests are also reported in order to have a global view of the behaviour of these sandwich panels.

Original languageBritish English
Pages (from-to)400-406
Number of pages7
JournalComposites Part B: Engineering
StatePublished - 2013


  • A. Honeycomb
  • A. Recycling
  • B. Vibration


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