DYNAMIC BENDING FAILURE OF A SEMI-INFINITE ICE FLOE HITTING A SLOPING PLANE

The main subject of this paper is the impact forces necessary to break up by bending failure a floating ice sheet when it at a certain velocity collides with a sloping structure. Theoretically the ice floe is considered as a semi-infinite large elastic plate resting on an elastic foundation and having uniform time-dependent boundary conditions. The inertia force of the plate and the hydrodynamic force of the water are included. Solutions to the equations for the vertical and the horizontal deformations are given. These are used to find the failure distance, failure time, and failure forces. Model tests in the laboratory have been performed and a comparison between test results and theory is shown. In this connection a statistical way of determining the failure forces is suggested.

• Supplemental Notes:
  • Proceedings of the 4th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 77), Newfoundland Memorial University, Canada, September 26-30, 1977.
• Corporate Authors:

  POAC Conference 77

  ,    
• Authors:
  • Sorensen, C
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Bending; Bending stress; Failure; Force; Ice; Ice phenomena; Set forward force; Stresses
• Uncontrolled Terms: Ice breakup
• Old TRIS Terms: Ice forces on structures; Model testing
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00167697
• Record Type: Publication
• Source Agency: Memorial University of Newfoundland, Canada
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jan 13 1978 12:00AM