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Multiphysical analysis system for deformation and fracture behavior of sea ice considering thermal changes under various scales

Research Project

Project/Area Number 16K06525
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hydraulic engineering
Research InstitutionPublic Works Research Institute

Principal Investigator

Kioka Shinji  国立研究開発法人土木研究所, 土木研究所(寒地土木研究所), 主任研究員 (20414154)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords海氷 / 破壊 / 個別要素法 / 有限要素法 / 変形 / 熱 / DEM / マルチスケール / 離散体 / 衝突 / ice pile up / 衝突力 / 衝突破壊
Outline of Final Research Achievements

We developed a fundamental and multiphysical analysis system for the interaction between sea ice and ship hull, marine structures, seabed and others, which can uniformly simulate the mechanical diversity and/or forms of sea ice from “continuum behavior” such as deformation of ice sheet to “discrete or non-continuum behavior” such as crack propagation, fracture and dynamic behavior of a large amount of ice fragments, and the numerical model can also consider the ice condition such as thermal shrinkage and expansion due to the thermal environmental changes.

Academic Significance and Societal Importance of the Research Achievements

急務とされている氷海域での津波防災対策,そして北極海航路や鉱物・石油天然ガス等の海底資源採掘などの北極海・亜極地開発にとって必要不可欠な高精度の海氷漂流予測ならびに構造物の安全性評価,海氷の利活用や共存のためのアイスマネージメント等への応用が期待される.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (2 results)

All 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] Experimental and theoretical considerations on water depth and force on onshore structures driven by run-up Tsunami wave in ice-infested waters2018

    • Author(s)
      S.Kioka, M.Ishida and T. Takeuchi
    • Journal Title

      Proc. of 24th IAHR International Symposium on Ice

      Volume: 1 Pages: 120-127

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] 中規模衝突実験及び数値実験に基づく 海氷等脆性体の衝突力特性と簡易式の提案2017

    • Author(s)
      木岡信治,遠藤強,竹内貴弘,渡部靖憲
    • Organizer
      第64回海岸工学講演会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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