抄録
This study aims to characterize the dynamic tensile strength of unidirectional carbon/epoxy composites. Two different carbon/epoxy composite systems, the unidirectional T700S/2500 and TR50S/modified epoxy, are tested at the static condition and the strain rate of 100 s-1. A high-strain-rate test was performed using a tension-type split Hopkinson bar technique with a specific fixture for specimen. The experimental results demonstrated that both tensile strength increase with strain rate, while the fracture behaviors are quite different. By the use of the rosette analysis and the strain transformation equations, the strain rate effects of material principal directions on tensile strength are investigated. It is experimentally found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. An empirical failure criterion for characterizing the dynamic tensile strength was proposed based on the Hashin's failure criterion. Although the proposed criterion is just the empirical formula, it is in better agreement with the experimental data and quite simple.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 139-156 |
| ページ数 | 18 |
| ジャーナル | Advanced Composite Materials |
| 巻 | 17 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 2008 6 1 |
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ASJC Scopus subject areas
- Ceramics and Composites
これを引用
Experimental characterization of dynamic tensile strength in unidirectional carbon/epoxy composites. / Taniguchi, Norihiko; Nishiwaki, Tsuyoshi; Kawada, Hiroyuki.
：: Advanced Composite Materials, 巻 17, 番号 2, 01.06.2008, p. 139-156.研究成果: Article
}
TY - JOUR
T1 - Experimental characterization of dynamic tensile strength in unidirectional carbon/epoxy composites
AU - Taniguchi, Norihiko
AU - Nishiwaki, Tsuyoshi
AU - Kawada, Hiroyuki
PY - 2008/6/1
Y1 - 2008/6/1
N2 - This study aims to characterize the dynamic tensile strength of unidirectional carbon/epoxy composites. Two different carbon/epoxy composite systems, the unidirectional T700S/2500 and TR50S/modified epoxy, are tested at the static condition and the strain rate of 100 s-1. A high-strain-rate test was performed using a tension-type split Hopkinson bar technique with a specific fixture for specimen. The experimental results demonstrated that both tensile strength increase with strain rate, while the fracture behaviors are quite different. By the use of the rosette analysis and the strain transformation equations, the strain rate effects of material principal directions on tensile strength are investigated. It is experimentally found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. An empirical failure criterion for characterizing the dynamic tensile strength was proposed based on the Hashin's failure criterion. Although the proposed criterion is just the empirical formula, it is in better agreement with the experimental data and quite simple.
AB - This study aims to characterize the dynamic tensile strength of unidirectional carbon/epoxy composites. Two different carbon/epoxy composite systems, the unidirectional T700S/2500 and TR50S/modified epoxy, are tested at the static condition and the strain rate of 100 s-1. A high-strain-rate test was performed using a tension-type split Hopkinson bar technique with a specific fixture for specimen. The experimental results demonstrated that both tensile strength increase with strain rate, while the fracture behaviors are quite different. By the use of the rosette analysis and the strain transformation equations, the strain rate effects of material principal directions on tensile strength are investigated. It is experimentally found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. An empirical failure criterion for characterizing the dynamic tensile strength was proposed based on the Hashin's failure criterion. Although the proposed criterion is just the empirical formula, it is in better agreement with the experimental data and quite simple.
KW - Carbon/epoxy composite
KW - Failure criterion
KW - Impact behavior
KW - Split Hopkinson bar
KW - Tensile strength
UR - http://www.scopus.com/inward/record.url?scp=46249098833&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=46249098833&partnerID=8YFLogxK
U2 - 10.1163/156855108X314779
DO - 10.1163/156855108X314779
M3 - Article
AN - SCOPUS:46249098833
VL - 17
SP - 139
EP - 156
JO - Advanced Composite Materials
JF - Advanced Composite Materials
SN - 0924-3046
IS - 2
ER -