Hybrid auxetic foam and perforated plate composites for human body support

H. Mohanraj, S. L M Filho Ribeiro, Tulio H C Panzera, Fabrizio Scarpa*, Ian R Farrow, Roy Jones, Angela M Davies-Smith, Chrystel D L Remillat, P Walters, Hua-Xin Peng

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

7 Citations (Scopus)
417 Downloads (Pure)

Abstract

The paper describes the design, manufacturing, modelling and testing of a hybrid composite support made from auxetic open cell foam liners and curved thermoplastic plates with rhomboidal perforations for human body support. Both the foam and the curved perforated plate have in-plane negative Poisson’s ratio behaviour. The static bending stiffness of the hybrid auxetic composite support is modelled using an analytical and Finite Element approach benchmarked against experimental results from three-point bending tests. The benchmarked Finite Element models are used to develop a map of optimized static stiffness versus the geometry of the rhomboidal perforations. A Design of Experiment testing campaign is also carried out on sixteen hybrid auxetic composite plates to understand the interaction and correlation of the static bending versus the geometry of the perforations and the contribution given by the auxetic foam liner.
Original languageEnglish
Pages (from-to)1378-1386
Number of pages9
Journalphysica status solidi (b)
Volume253
Issue number7
Early online date17 May 2016
DOIs
Publication statusPublished - Jul 2016

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Keywords

  • auxetic
  • foam
  • curved plate
  • perforations
  • modelling
  • testing

Cite this

Mohanraj, H., Filho Ribeiro, S. L. M., Panzera, T. H. C., Scarpa, F., Farrow, I. R., Jones, R., Davies-Smith, A. M., Remillat, C. D. L., Walters, P., & Peng, H-X. (2016). Hybrid auxetic foam and perforated plate composites for human body support. physica status solidi (b), 253(7), 1378-1386. https://doi.org/10.1002/pssb.201600106