Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites

Norihiko Taniguchi, Tsuyoshi Nishiwaki, Hiroyuki Kawada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The tensile strength of unidirectional carbon fiber reinforced plastics under a high strain rate was experimentally characterized. A high-strain-rate test was performed using the tension-type split Hopkinson bar technique with a special fixture for the impact tensile specimen. In order to minimize the extension-shear coupling effect, an oblique tab technique was applied. The experimental results demonstrated that the tensile strength increase with strain rate. The strain rate effect of material principal directions on tensile strength are also investigated by the use of the rosette analysis and the strain transformation equations. It is found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. The experimental results were compared with the tensile strength predicted based on the Hashin-Rotem failure criterion. The results imply that the application limit of this failure criterion exists for the prediction of the tensile strength under the dynamic condition. The fracture behavior translation from static to dynamic must be incorporated for more accurate prediction.

    Original languageEnglish
    Title of host publicationICCM International Conferences on Composite Materials
    Publication statusPublished - 2007
    Event16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto
    Duration: 2007 Jul 82007 Jul 13

    Other

    Other16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
    CityKyoto
    Period07/7/807/7/13

    Fingerprint

    Strain rate
    Tensile strength
    Carbon
    Composite materials
    Carbon fiber reinforced plastics
    Shear strain

    Keywords

    • Carbon/epoxy composites
    • Impact behavior
    • Split hopkinson bar
    • Strain rate effect
    • Tensile strength

    ASJC Scopus subject areas

    • Engineering(all)
    • Ceramics and Composites

    Cite this

    Taniguchi, N., Nishiwaki, T., & Kawada, H. (2007). Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites. In ICCM International Conferences on Composite Materials

    Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites. / Taniguchi, Norihiko; Nishiwaki, Tsuyoshi; Kawada, Hiroyuki.

    ICCM International Conferences on Composite Materials. 2007.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Taniguchi, N, Nishiwaki, T & Kawada, H 2007, Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites. in ICCM International Conferences on Composite Materials. 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, 07/7/8.
    Taniguchi N, Nishiwaki T, Kawada H. Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites. In ICCM International Conferences on Composite Materials. 2007
    Taniguchi, Norihiko ; Nishiwaki, Tsuyoshi ; Kawada, Hiroyuki. / Experimental characterization of dynamic tensile strength in off-axis carbon/epoxy composites. ICCM International Conferences on Composite Materials. 2007.
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    abstract = "The tensile strength of unidirectional carbon fiber reinforced plastics under a high strain rate was experimentally characterized. A high-strain-rate test was performed using the tension-type split Hopkinson bar technique with a special fixture for the impact tensile specimen. In order to minimize the extension-shear coupling effect, an oblique tab technique was applied. The experimental results demonstrated that the tensile strength increase with strain rate. The strain rate effect of material principal directions on tensile strength are also investigated by the use of the rosette analysis and the strain transformation equations. It is found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. The experimental results were compared with the tensile strength predicted based on the Hashin-Rotem failure criterion. The results imply that the application limit of this failure criterion exists for the prediction of the tensile strength under the dynamic condition. The fracture behavior translation from static to dynamic must be incorporated for more accurate prediction.",
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    AU - Nishiwaki, Tsuyoshi

    AU - Kawada, Hiroyuki

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    N2 - The tensile strength of unidirectional carbon fiber reinforced plastics under a high strain rate was experimentally characterized. A high-strain-rate test was performed using the tension-type split Hopkinson bar technique with a special fixture for the impact tensile specimen. In order to minimize the extension-shear coupling effect, an oblique tab technique was applied. The experimental results demonstrated that the tensile strength increase with strain rate. The strain rate effect of material principal directions on tensile strength are also investigated by the use of the rosette analysis and the strain transformation equations. It is found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. The experimental results were compared with the tensile strength predicted based on the Hashin-Rotem failure criterion. The results imply that the application limit of this failure criterion exists for the prediction of the tensile strength under the dynamic condition. The fracture behavior translation from static to dynamic must be incorporated for more accurate prediction.

    AB - The tensile strength of unidirectional carbon fiber reinforced plastics under a high strain rate was experimentally characterized. A high-strain-rate test was performed using the tension-type split Hopkinson bar technique with a special fixture for the impact tensile specimen. In order to minimize the extension-shear coupling effect, an oblique tab technique was applied. The experimental results demonstrated that the tensile strength increase with strain rate. The strain rate effect of material principal directions on tensile strength are also investigated by the use of the rosette analysis and the strain transformation equations. It is found that the shear strain rate produces the more significant contribution to strain rate effect on dynamic tensile strength. The experimental results were compared with the tensile strength predicted based on the Hashin-Rotem failure criterion. The results imply that the application limit of this failure criterion exists for the prediction of the tensile strength under the dynamic condition. The fracture behavior translation from static to dynamic must be incorporated for more accurate prediction.

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