Journal of Materials Science

, Volume 28, Issue 17, pp 4667–4672 | Cite as

Microbuckling instability in elastomeric cellular solids

  • R. Lakes
  • P. Rosakis
  • A. Ruina


Compressive properties of elastic cellular solids are studied via experiments upon foam and upon single-cell models. Open-cell foam exhibits a monotonic stress-strain relation with a plateau region; deformation is localized in transverse bands. Single-cell models exhibit a force-deformation relation which is not monotonic. In view of recent concepts of the continuum theory of elasticity, the banding instability of the foam in compression is considered to be a consequence of the non-monotonic relation between force and deformation of the single cell.


Polymer Foam Single Cell Continuum Theory Plateau Region 
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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • R. Lakes
    • 1
  • P. Rosakis
    • 2
  • A. Ruina
    • 2
  1. 1.Department of Biomedical Engineering, Department of Mechanical Engineering, Center for Laser Science and EngineeringUniversity of IowaIowa CityUSA
  2. 2.Department of Theoretical and Applied MechanicsCornell UniversityIthacaUSA

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