Strain rate effects on the energy absorption of rapidly manufactured composite tubes
Data(s) |
01/09/2009
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Resumo |
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¯<sup>4</sup> 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.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Sage |
Relação |
http://dro.deakin.edu.au/eserv/DU:30026299/brighton-strainrateeffectsontheenergy-2009.pdf http://dx.doi.org/10.1177/0021998309344646 |
Direitos |
2009, The Authors |
Palavras-Chave | #carbon fibre #glass fibre #energy absorption #mechanical testing |
Tipo |
Journal Article |