2D DEM of Ice Rubble: The Effect of Rate-Dependent Friction

The friction coefficient of ice on ice is usually modeled as a constant. However, theory and experimental data show that ice-ice friction depends on the speed of sliding. In this paper the authors incorporate a rate-dependent friction coefficient into 2 dimensional (2D) discrete element method simulations of ice ensemble behaviour. Friction is high (0.7) at low sliding speeds (<10⁻⁶ ms⁻¹), low (0.1) at high sliding speeds (>10⁻² ms⁻¹) and decreases log-linearly between these values. The authors show qualitatively and quantitatively how this affects the overall dynamics of a shear box experiment.

• Record URL:
  • http://www.poac.com/Papers/2015/pdf/poac15Final00183.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:
  • Lishman, Ben
  • Polojärvi, Arttu
• Conference:
  • 23rd International Conference on Port and Ocean Engineering under Arctic Conditions (POAC '15)
  • Location: Trondheim , Norway
  • Date: 2015-6-14 to 2015-6-18
• Publication Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 8p
• Monograph Title: POAC '15: Proceedings of the 23rd 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; Discrete element method; Discrete systems; Ice concentration; Icebreaking; Rubble; Simulation; Sliding friction
• Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01617120
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 21 2016 1:42PM