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2008 Fiscal Year Final Research Report

Simulation-Based Strength Evaluation of Aged Ship and Marine Structures

Research Project

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Project/Area Number 17206086
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionYokohama National University

Principal Investigator

SUMI Yoichi  Yokohama National University, 大学院・工学研究院, 教授 (80107367)

Co-Investigator(Kenkyū-buntansha) KAWAMURA Yasumi  横浜国立大学, 大学院・工学研究院, 教授 (50262407)
WADA Taishi  横浜国立大学, 大学院・工学研究院, 准教授 (60359700)
Project Period (FY) 2005 – 2008
Keywords海上安全 / 船舶海洋工学 / 破壊力学 / 疲労 / 腐食 / シミュレーション工学 / 長寿命化
Research Abstract

船舶海洋構造物の経年劣化の主要メカニズムである疲労き裂の成長と腐食による強度・延性低下について数値シミュレーション手法を確立するとともに開発手法の妥当性を実験的に検証した。疲労き裂伝播シミュレーションについてはコンテナ船疲労危険部位の評価に適用できることが示され、その実用性が実証された。腐食による経年劣化に関しては、その延性低下のメカニズムが、実験および数値計算により初めて定量的に明らかにされた。

  • Research Products

    (19 results)

All 2009 2008 2007 2006 2005 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (6 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] 変動荷重を受ける溶接継手の疲労き裂伝播予測法2008

    • Author(s)
      毛利雅志、角洋一、伊藤友一
    • Journal Title

      日本船舶海洋工学会論文集 7

      Pages: 259-270

    • Peer Reviewed
  • [Journal Article] Strength and deformability of corroded steel plates estimated by replicated specimens2008

    • Author(s)
      Y. Sumi
    • Journal Title

      Journal of Ship Production 24-3

      Pages: 161-167

    • Peer Reviewed
  • [Journal Article] A computational approach for fatigue crack propagation in ship structures under random sequence of clustered loading2008

    • Author(s)
      T. Okawa and Y. Sumi
    • Journal Title

      Journal of Marine Science and Technology 13-4

      Pages: 416-427

    • Peer Reviewed
  • [Journal Article] 余寿命便益評価に基づく船体構造の保守管理手法に関する研究2007

    • Author(s)
      川村恭己, 西本匡伸, 角洋一
    • Journal Title

      日本船舶海洋工学会論文集 6

      Pages: 361-369

    • Peer Reviewed
  • [Journal Article] Simulation-based fatigue crack management of ship structural details applied to longitudinal and transverse connections2006

    • Author(s)
      T. Okawa, Y. Sumi, and M. Mohri
    • Journal Title

      Marine Structures 19

      Pages: 217-240

    • Peer Reviewed
  • [Journal Article] 表面形状の再現加工による腐食鋼板の引張強度と変形能の解明2006

    • Author(s)
      角洋一、山村暢隆、山室佑介
    • Journal Title

      日本船舶海洋工学会論文集 4

      Pages: 239-245

    • Peer Reviewed
  • [Journal Article] 腐食ピットの確率モデルによる再現腐食表面形状を有する鋼板の引張試験2006

    • Author(s)
      中井達郎、角洋一、斉木幸太郎、山本規雄
    • Journal Title

      日本船舶海洋工学会論文集 4

      Pages: 246-255

    • Peer Reviewed
  • [Journal Article] 変動振幅荷重を受ける構造体の疲労き裂伝播シミュレーシ ョン-き裂開閉口モデルを結合した自 動き裂進展解析システムの開発2006

    • Author(s)
      大川鉄平、角洋一
    • Journal Title

      日本船舶海洋工学会論文集 4

      Pages: 269-276

    • Peer Reviewed
  • [Journal Article] 船体縦通材の疲労き裂伝播に関する研究-3次元板骨構造の複数き裂同時進展解析2005

    • Author(s)
      大川鉄平、角洋一
    • Journal Title

      日本船舶海洋工学会論文集 2

      Pages: 331-339

    • Peer Reviewed
  • [Journal Article] Information system for structural integrity of ships2005

    • Author(s)
      Y. Kawamura and Y. Sumi
    • Journal Title

      Journal of Engng. for Maritime Environment 219

      Pages: 93-106

    • Peer Reviewed
  • [Presentation] Numerical simulation of strength and deformability of steel plates with surface pits and replicated corrosion-surface2009

    • Author(s)
      Md. Mobesher Ahmmad and Y. Sumi
    • Organizer
      MARSTRUCT 2009
    • Place of Presentation
      Lisbon
    • Year and Date
      20090316-18
  • [Presentation] A study on a method for maintenance of ship structures considering remaining life benefit2009

    • Author(s)
      Y. Kawamura, Y. Sumi and M. Nishimoto
    • Organizer
      MARSTRUCT 2009
    • Place of Presentation
      Lisbon
    • Year and Date
      20090316-18
  • [Presentation] Computational approach for fatigue crack propagation in ship structures under random clustered loading2008

    • Author(s)
      Y. Sumi
    • Organizer
      XXII International Congress of Theoretical and Applied Mechanics
    • Place of Presentation
      Adelaide, Australia
    • Year and Date
      20080824-29
  • [Presentation] Measurement of true stress-strain and its application to assess the strength and deformability of steel plates with surface pits and replica for general corrosion2008

    • Author(s)
      Md. Mobesher Ahmmad and Y. Sumi
    • Organizer
      日本船舶海洋工学会東部支部秋季講演会
    • Place of Presentation
      東京
    • Year and Date
      2008-11-25
  • [Presentation] Computational approach for fatigue crack management in ship structures under random sequence of clustered loading2007

    • Author(s)
      Y. Sumi
    • Organizer
      The 21st Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures
    • Place of Presentation
      Yokohama
    • Year and Date
      20070910-13
  • [Presentation] Crack paths from weld details in three-dimensional plate structures2006

    • Author(s)
      Y. Sumi and T. Okawa
    • Organizer
      The 2nd International Conference of Crack Paths(CP 2006)
    • Place of Presentation
      Parma, Italy
    • Year and Date
      20060914-16
  • [Remarks] Fatigue Crack Management of Ship Structures under Random Sequence of Clustered Loading, Maritime Engineering Seminar, April 30, 2009, Technical University of Denmark

  • [Remarks] Crack Propagation under random sequence of clustered loading, Solid Mechanics Seminar, April 28, 2009, D'Alembert Institute, University of Pierre and Marie Curie(Paris VI).

  • [Patent(Industrial Property Rights)] き裂進展解析方法2008

    • Inventor(s)
      角洋一、毛利雅志
    • Industrial Property Rights Holder
      横浜国立大学・(株)IHI
    • Industrial Property Number
      特願2008-100524
    • Acquisition Date
      2008-04-08

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Published: 2010-06-10   Modified: 2016-04-21  

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