A comparative evaluation of crashworthy sandwich structures

Giuseppe Pitarresi, Velecela, Robinson, Torre, Kenny, Ingleton, Found, Carruthers, Kenny

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

This paper describes an experimental evaluation of the energy absorption properties of a series of novel designs for cost-effective crashworthy composite sandwich structures. All the designs are based on the concept of the "tied-core" sandwich, i.e. the use of additional core reinforcements that act to tie the opposing facings of a sandwich together, thus preventing catastrophic failure under edgewise loading. The design, manufacture and crush testing of hollow rectangular tubes fabricated from six different tied-core concepts is described. Factors that are shown to promote high energy absorption include large, continuous areas of contact between the facings and the ties, non-thin sandwich facings, strong corners reinforced with continuous hoop fibres, and the use of an appropriate collapse trigger mechanism.
Original languageEnglish
Pages (from-to)34-44
JournalComposite Structures
Volume78
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Civil and Structural Engineering

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