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Strain rate effects on the energy absorption of rapidly manufactured composite tubes

Brighton, Aaron, Forrest, Mark, Starbuck, Mike, Erdman, Donald and Fox, Bronwyn 2009, Strain rate effects on the energy absorption of rapidly manufactured composite tubes, Journal of composite materials, vol. 43, no. 20, pp. 2183-2200.

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Title Strain rate effects on the energy absorption of rapidly manufactured composite tubes
Author(s) Brighton, Aaron
Forrest, Mark
Starbuck, Mike
Erdman, Donald
Fox, Bronwyn
Journal name Journal of composite materials
Volume number 43
Issue number 20
Start page 2183
End page 2200
Total pages 18
Publisher Sage
Place of publication London, England
Publication date 2009-09
ISSN 0021-9983
1530-793X
Keyword(s) carbon fibre
glass fibre
energy absorption
mechanical testing
Summary Quasi-static and intermediate rate axial crush tests were conducted on tubular specimens of Carbon/Epoxy (Toray T700/G83C) and Glass/Polypropylene (Twintex). The quasi-static tests were conducted at 10 mm/min (1.67 x 10¯4 m/s); five different crush initiators were used. Tests at intermediate rates were performed at speeds of 0.25, 0.5, 0.75, 1, 2, and 4m/s. Modes of failure and specific energy absorption (SEA) values were studied. The highest SEA measured was 86 kJ/kg. This value was observed using Carbon/Epoxy samples at quasi static rates with a 45° chamfer initiator. The highest energy absorption for Twintex tubes was observed to be 57.56 kJ/kg during 45° chamfer initiated tests at 0.25 m/s. Compared with steel and aluminium, SEA values of 15 and 30 kJ/kg, respectively, the benefits of using composite materials in crash structures become apparent.
Language eng
Field of Research 091202 Composite and Hybrid Materials
Socio Economic Objective 880109 Road Safety
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2009
Copyright notice ©2009, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30026299

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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