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2010 Fiscal Year Self-evaluation Report

EXPLOSIVELY DRIVEN FRAGMENTATION AND DAMAGE REDUCTION MEASURES FOR STRUCTURAL COMPONENTS

Research Project

  • PDF
Project/Area Number 20560079
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionKumamoto University

Principal Investigator

HIROE Tetsuyuki  Kumamoto University, 大学院・自然科学研究科, 教授 (90218826)

Project Period (FY) 2008 – 2011
Keywords破壊 / 爆発 / 剥離 / 分裂破片 / スポール / Vノッチ / 2重管
Research Abstract

(1)独自に開発したPETN爆薬の制御起爆技術を適用し、円筒、球殻、円環の基本構造要素(ステンレス鋼、アルミ合金製)を一様高速膨張させ、その分裂破壊挙動を把握するとともに既存分裂モデルの拡張・適用についても検討する。
(2)爆発飛散破片による近接機器の損傷を防ぎ機能保全するために爆発円筒の外側に外筒を同軸設置し破片の飛散防止効果について実験・解析を行い、飛散防止のための限界壁厚の評価法について検討する。
(3)衝撃波が入射する壁の反射自由表面で発生する剥離破壊(スポール)について、PETNの制御起爆で生成した平面爆轟波を平板(ステンレス鋼、アルミ合金製)に入射させることで再現し、実験・解析によってこのタイプの損傷を防止するための表面構造を提案する。

  • Research Products

    (8 results)

All 2011 2010 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (3 results)

  • [Journal Article] Explosively Driven Fragmentation Behavior for Structural Components and Shutterproof Effect of Wall Doubling2011

    • Author(s)
      Tetsuyuki Hiroe, Kazuhito Fujiwara, Hidehiro Hata, Kiyotake Tsutsumi, Takuya Igawa, Wataru Yamashita
    • Journal Title

      Materials Science Forum 673

      Pages: 191-196

    • Peer Reviewed
  • [Journal Article] Explosively Driven Expansion and Fragmentation Behavior for Cylinders, Spheres and Rings of 304 Stainless Steel2010

    • Author(s)
      T.Hiroe, K.Fujiwara, H.Hata, M.Yamauchi, K.Tsutsumi, T.Igawa
    • Journal Title

      Journal of Materials Science Forum

      Pages: 638-642,1035-1040

    • Peer Reviewed
  • [Journal Article] Deformation and fragmentation behavior of exploded metal cylinders and the effects of wall materials, configuration, explosive energy and initiated locations2008

    • Author(s)
      T.Hiroe, K.Fujiwara, H.Hata, H.Takahash
    • Journal Title

      International Journal of Impact Engineering 35

      Pages: 1578-1586

    • Peer Reviewed
  • [Journal Article] Mechanical changes in metals caused by transmission of explosive shock waves and a consideration to fragmentation energy in cylinder explosions2008

    • Author(s)
      Tetsuyuki Hiroe, Kazuhito Fujiwara, Hidehiro Hata, Kenjiro Watanabe
    • Journal Title

      Science and Technology of Energetic Materials 69

      Pages: 99-107

    • Peer Reviewed
  • [Journal Article] Experimental and numerical study on dynamic buckling of 304 stainless steel cylinders impacted by explosively driven flyer plates2008

    • Author(s)
      Tetsuyuki Hiroe, Kazuhito Fujiwara, Hidehiro Hata, Keisuke Sashima
    • Journal Title

      Science and Technology of Energetic Materials 69

      Pages: 76-81

    • Peer Reviewed
  • [Presentation] Damage Reduction of Explosively Driven Spallation by Machining V-Notch Rows on the Surfaces of 304 Stainless Steel Plates2010

    • Author(s)
      Tetsuyuki Hiroe
    • Organizer
      7^<th> International Symposium on Impact Engineering
    • Place of Presentation
      Sofitel Victoria Hotel, Warsaw, Poland
    • Year and Date
      20100704-07
  • [Presentation] Explosively Driven Expansion and Fragmentation Behavior for Cylinders, Spheres and Rings of 304 Stainless Steel2009

    • Author(s)
      T.Hiroe
    • Organizer
      International Conference on rocessing and Manufacturing of Advanced Materials
    • Place of Presentation
      Martim Hotel, Berlin, Germany
    • Year and Date
      2009-08-26
  • [Presentation] The effect of slanting Side surfaces on spall fracture behave-or of metallic plates induced by explosive shock waves and its application to novel plate structures for damage reduction2008

    • Author(s)
      K.Nakasato
    • Place of Presentation
      Kumamoto, Japan
    • Year and Date
      2008-09-11

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Published: 2012-02-13   Modified: 2016-04-21  

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