EXPERIMENTAL DETERMINATION OF ICE IMPACT LOADS ON MARINE VEHICLES

An experiment to determine the magnitude of ice impact loads experienced by the hull structure of the U.S. Coast Guard Icebreaker MACKINAW was conducted in Lakes Huron and Michigan during the winter of 1970-1971 under the sponsorship of the Office of Research and Development, U.S. Coast Guard (U.S. Department of Transportation). The impact load was estimated from the response of a strain gauged portion of the bow structure. The results indicated that the loads were of very short duration. The peak value of the load correlated well with the product of ship speed and ice thickness. The dimensionless impact load correlated reasonably well with the product of Froude number and dimensionless flexural strength. The successful use of dimensionless groups to reduce the data suggests that the hull-ice impact phenomenon may be modeled on a small scale.

• Supplemental Notes:
  • Presented at Ice Symposium, Leningrad, 1972.
• Corporate Authors:

  Arctec, Incorporated

  Wilde Lake Village Green, Suite 255
  Columbia, MD  United States  21044
• Authors:
  • Edwards Jr, R Y
  • Wheaton, J W
• Publication Date: 1972

Media Info

• Features: References;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Force; Hulls; Ice; Icebreakers; Icebreaking; Impact; Impact loads; Strength of materials; Vehicle design
• Old TRIS Terms: Hull impact; Hull strength; Ice forces on structures
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00041379
• Record Type: Publication
• Source Agency: Arctec, Incorporated
• Files: TRIS
• Created Date: Mar 2 1973 12:00AM