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Strain measures for rigid crushable foam in uniaxial compression

  • Q. M. Li*
  • , R. A.W. Mines
  • *Corresponding author for this work
  • University of Manchester
  • University of Liverpool

Research output: Contribution to journalArticlepeer-review

Abstract

Progressive collapse deformation mechanisms in Rohacell-51WF foam during uniaxial compression has been studied. Measures of a macroscopic engineering strain are identified. The elastic and plastic parts of a macroscopic engineering strain can be predicted by using the compression failure strain, lock-up strain, and time dependent elastic and plastic parts of lock-up strain, which are material parameters. Identification of strain measures in a uniaxial compression test is essential to get material parameters for an elastoplastic model. The viscoelastic recovery property of Rohacell-51WF foam is also described.

Original languageEnglish
Pages (from-to)132-140
Number of pages9
JournalStrain
Volume38
Issue number4
DOIs
Publication statusPublished - Nov 2002
Externally publishedYes

Keywords

  • Crushable foam
  • Strain localisation
  • Strain measurement

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