Journal of Materials Science

, Volume 23, Issue 12, pp 4406–4414 | Cite as

Negative Poisson's ratio polymeric and metallic foams

  • E. A. Friis
  • R. S. Lakes
  • J. B. Park


Foam materials based on metal and several polymers were transformed so that their cellular architecture became re-entrant, i.e. with inwardly protruding cell ribs. Foams with re-entrant structures exhibited negative Poisson's ratios as well as greater resilience than conventional foams. Foams with negative Poisson's ratios were prepared using different techniques and materials and their mechanical behaviour and structure evaluated.


Polymer Foam Mechanical Behaviour Foam Material Cellular Architecture 
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Copyright information

© Chapman and Hall Ltd. 1988

Authors and Affiliations

  • E. A. Friis
    • 1
  • R. S. Lakes
    • 1
  • J. B. Park
    • 1
  1. 1.Department of Biomedical Engineering, College of EngineeringThe University of IowaIowa CityUSA

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