Flat-topped conical shell under axial compression

P. Xue, T. X. Yu, Xiaoming Tao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

Based on experimental observations of a grid-domed textile composite under axial compression, the large deformation mechanisms of a flat-topped conical shell are identified. Accordingly, both elastic model and rigid-plastic model are proposed to describe the collapse process and predict the load-displacement characteristics. In the rigid-plastic analysis, the energies dissipated in bending along plastic hinge lines and in stretching of the thin-wall segments between the plastic hinge lines are taken into account. Analytical expressions describing the load-displacement and energy-displacement relationships during the large deformation process are derived. Illustrated by typical numerical examples, the effects of apical angle of a flat-topped conical shell on its energy absorption capacity are revealed. The respective strain distributions on the conical shell resulted from bending deformation and membrane deformation are presented. A good agreement is shown between the theoretical predictions and experimental results.
Original languageEnglish
Pages (from-to)2125-2145
Number of pages21
JournalInternational Journal of Mechanical Sciences
Volume43
Issue number9
DOIs
Publication statusPublished - 1 Sep 2001

Keywords

  • Flat-topped conical shell
  • Knitted textile composite
  • Large deformation mechanism
  • Load-displacement
  • Plasticity

ASJC Scopus subject areas

  • Mechanical Engineering

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