Non-smooth DEM Simulation for Interaction of Conical Structure and Managed Ice Floes using Breakable Ice Element

To estimate global ice loads exerted on a structure due to interaction with managed ice floes, the authors have been developing a numerical simulation method by a non-smooth discrete element method. In this study, a breakable ice element consisting of small square rigid body with a fixed joint function of the physics engine is introduced to the authors numerical simulation method in order to represent ice failure. To clarify the effect of the ice failure, the authors compared simulation results with experimental results obtained from ice tank tests conducted in National Maritime Research Institute. The results show that the breakable ice elements reasonably reduce peak loads to the experimental results in the condition where peak loads became extremely high in the simulation not considering ice failure. Furthermore, it is found that the state of ice failure is different depending on a coefficient of friction between ice floes. The state of ice failure similar to the experiment was sometimes observed for a larger coefficient of friction between ice floes.

• Record URL:
  https://www.poac.com/Papers/2019/pdf/POAC19-079.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03766756
• Supplemental Notes:
  • Abstract reprinted with permission of the International Conference on Port and Ocean Engineering Under Arctic Conditions (POAC).
• Authors:
  • Hasegawa, Kenta
  • Uto Shotaro
  • Shimoda, Haruhito
  • Wako, Daisuke
  • Matsuzawa, Takatoshi
• Conference:
  • 25th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 2019)
  • Location: Delft , Netherlands
  • Date: 2019-6-9 to 2019-6-19
• Publication Date: 2019

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 12p
• Monograph Title: POAC 2019: Proceedings of the 25th International Conference on Port and Ocean Engineering under Arctic Conditions
• Serial:
  • Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions
  • Publisher: Port and Ocean Engineering under Arctic Conditions (POAC)
  • ISSN: 0376-6756
  • EISSN: 2077-7841
  • Serial URL: http://www.poac.com/PapersOnline.html

Subject/Index Terms

• TRT Terms: Coefficient of friction; Finite element method; Ice floes; Load tests; Numerical analysis; Offshore structures; Sea ice; Simulation
• Identifier Terms: National Maritime Research Institute
• Geographic Terms: Arctic Regions
• Subject Areas: Environment; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 01745199
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 15 2020 9:12AM