SHPB法を用いたCFRP積層材の衝撃圧縮試験法  [in Japanese] Experimental Method for Dynamic Compression Behavior of Composite Laminates Using SHPB Technique  [in Japanese]

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Author(s)

Abstract

A novel experimental method was proposed for characterizing the compressive properties of composite materials under impact loading. Split Hopkinson pressure bar system was employed to carry out the dynamic compression tests. The dynamic stress-strain relations could be precisely estimated by the proposed method, where the ramped input, generated by the plastic deformation of a zinc buffer, was effective to reduce the oscillation of the stress field in the specimen. The longitudinal strain of gage area could be estimated from the nominal deformation of gage area, and consequently the failure process could be grasped in detail from the stress-strain relation. Finite element analysis was also carried out to confirm the validity of the proposed method. Numerical results demonstrated that the nonuniformity of the stress field could be negligible by using the ramped input. The dynamic compressive strength of a twilled-woven carbon-fiber/epoxy composite was slightly higher than the static compressive strength.

Journal

  • Journal of the Society of Materials Science, Japan

    Journal of the Society of Materials Science, Japan 63(5), 362-367, 2014

    The Society of Materials Science, Japan

Codes

  • NII Article ID (NAID)
    130004749891
  • NII NACSIS-CAT ID (NCID)
    AN00096175
  • Text Lang
    JPN
  • ISSN
    0514-5163
  • NDL Article ID
    025546382
  • NDL Call No.
    Z14-267
  • Data Source
    NDL  J-STAGE 
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