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Auxetic Cellular Materials and Structures

[+] Author Affiliations
Joseph N. Grima, Ruben Gatt, Pierre-Sandre Farrugaia

University of Malta

Andrew Alderson

University of Bolton

Kenneth E. Evans

University of Exeter

Paper No. IMECE2005-82260, pp. 489-495; 7 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Aerospace
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Aerospace Division
  • ISBN: 0-7918-4210-X | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


Auxetic materials and structures exhibit the very unusual property of becoming wider when stretched and narrower when squashed (i.e. they have a negative ‘Poisson’s ratio’). This property results in many beneficial effects in the characteristics of the system that make auxetics superior to conventional systems in many practical and high tech applications, including aeronautics where, for example, auxetics are being proposed as potential components for the production of better quality lifting devices such as helicopter rotor blades or airplane wings. This work reviews and discusses the behaviour of known and novel cellular systems, which exhibit this unusual but highly desirable property.

Copyright © 2005 by ASME



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