Composite steel–CFRP SHS tubes under axial impact
作者： M.R. Bambach , M. Elchalakani , X.L. Zhao
DOI: 10.1016/J.COMPSTRUCT.2008.02.008
关键词: Energy absorption 、 Structural engineering 、 Specific strength 、 Absorption (acoustics) 、 High energy 、 Composite material 、 Crashworthiness 、 Tube (container) 、 Polymer 、 Materials science 、 Composite number
摘要: Abstract Composite steel–carbon fibre reinforced polymer (CFRP) tubes combine the benefits of stable, ductile plastic collapse mechanism steel and high strength to weight ratio fibre/resin composite, form a composite tube with energy absorption capability. This paper presents experimental results square hollow section (SHS) steel–CFRP subjected axial impact. A number different SHS geometries two matrix layouts CFRP are investigated. The dynamic compared quasi-static SHS. It is shown that crashworthiness properties load uniformity specific exceed those steel-only CFRP-only tubes. An additional advantage application technique may be retro-fitted existing tubes, capacity markedly improved by such application. theoretical method calculate mean crushing which includes effects strain-rate compare well results.
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