Extensible plastic collapse of thin-wall frusta as energy absorbers

A. G. Mamalis, D. E. Manolakos, S. Saigal, G. Viegelahn, W. Johnson

Research output: Contribution to journalArticlepeer-review

97 Scopus citations


The crumpling of thin-walled frusta, under axial compression, in the 'concertina' mode is studied. The energy expended in bending at the plastic hinges and in stretching the metal between the hinges is minimized for the total decrease in height due to collapse. The thinning of the cross-section due to stretching is neglected. A theoretical model has been developed and numerical results are obtained that show the effect of slenderness, t/D, and the semi-apical angle of the frusta. Good qualitative agreement in trends is exhibited when comparison with available experimental results is made.

Original languageEnglish (US)
Pages (from-to)219-229
Number of pages11
JournalInternational Journal of Mechanical Sciences
Issue number4
StatePublished - 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Aerospace Engineering
  • Ocean Engineering
  • Applied Mathematics
  • General Materials Science
  • Civil and Structural Engineering


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