Abstract

This work describes the manufacture and characterisation of a PEEK-based zero Poisson's ratio honeycomb (SILICOMB) produced using Kirigami-inspired cutting and folding techniques. The flatwise compression and transverse shear properties of the structure are determined through ASTM mechanical testing, and the results compared against commercially available honeycombs, including several other zero Poisson's ratio cellular structures. An analytical model to predict the shear strength is compared to the results. SILICOMB specimens are found to have lower stiffness compared to other honeycomb configurations, but comparable strength. Factors influencing the results and variations to the manufacturing process are discussed.

Original languageEnglish
Pages (from-to)30-40
Number of pages11
JournalComposite Structures
Volume114
Early online date12 Apr 2014
DOIs
Publication statusPublished - Aug 2014

Keywords

  • Polymers
  • Honeycomb
  • Buckling
  • Analytical modelling
  • Mechanical testing
  • Forming
  • SANDWICH PANELS
  • POISSONS RATIO
  • SHEAR MODULUS
  • DESIGN
  • CORES

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