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

Aaron Brighton; Mark Forrest; Mike Starbuck; Donald Erdman; Bronwyn Fox

doi:10.1177/0021998309344646

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

Aaron Brighton, Mark Forrest, Mike Starbuck, Donald Erdman, Bronwyn Fox

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

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 (1.67×10^g-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 57.56kJ/kg during 45° chamfer initiated tests at 0.25m/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.

Original language	English
Pages (from-to)	2183-2200
Number of pages	18
Journal	Journal of Composite Materials
Volume	43
Issue number	20
DOIs	https://doi.org/10.1177/0021998309344646
State	Published - Sep 2009

Keywords

Carbon fibre
Energy absorption
Glass fibre
Mechanical testing.

Access to Document

10.1177/0021998309344646

Cite this

@article{fd8a5a1f109f4e3f8874c0c7f11085d2,

title = "Strain rate effects on the energy absorption of rapidly manufactured composite tubes",

abstract = "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 (1.67×10g-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 57.56kJ/kg during 45° chamfer initiated tests at 0.25m/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.",

keywords = "Carbon fibre, Energy absorption, Glass fibre, Mechanical testing.",

author = "Aaron Brighton and Mark Forrest and Mike Starbuck and Donald Erdman and Bronwyn Fox",

year = "2009",

month = sep,

doi = "10.1177/0021998309344646",

language = "English",

volume = "43",

pages = "2183--2200",

journal = "Journal of Composite Materials",

issn = "0021-9983",

publisher = "SAGE Publications",

number = "20",

}

TY - JOUR

T1 - Strain rate effects on the energy absorption of rapidly manufactured composite tubes

AU - Brighton, Aaron

AU - Forrest, Mark

AU - Starbuck, Mike

AU - Erdman, Donald

AU - Fox, Bronwyn

PY - 2009/9

Y1 - 2009/9

N2 - 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 (1.67×10g-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 57.56kJ/kg during 45° chamfer initiated tests at 0.25m/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.

AB - 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 (1.67×10g-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 57.56kJ/kg during 45° chamfer initiated tests at 0.25m/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.

KW - Carbon fibre

KW - Energy absorption

KW - Glass fibre

KW - Mechanical testing.

UR - https://www.scopus.com/pages/publications/69949172518

U2 - 10.1177/0021998309344646

DO - 10.1177/0021998309344646

M3 - Article

AN - SCOPUS:69949172518

SN - 0021-9983

VL - 43

SP - 2183

EP - 2200

JO - Journal of Composite Materials

JF - Journal of Composite Materials

IS - 20

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this