Field Tests of the Kinetic Friction Coefficient of Sea Ice

This report presents the results of tests of the ice friction coefficient mu sub k carried out during the May 1984 expedition of the F.S. Polarstern off the coast of Labrador. The test surfaces were Inerta-160-coated steel plates and bare steel plates, hand roughened and sandblasted. The main findin...

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Bibliographic Details
Main Authors: Tatinclaux,Jean-Claude, Murdey,David
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1985
Subjects:
Snow
Ice and Permafrost
Marine Engineering
*METAL PLATES
*FRICTION
*SEA ICE
VELOCITY
STEADY STATE
COASTAL REGIONS
FIELD TESTS
SURFACE ROUGHNESS
ORIENTATION(DIRECTION)
CRYSTALS
STEEL
SURFACES
WETTING
ICE
COEFFICIENTS
PRESSURE
KINETICS
ROUGHNESS
SHIP PLATES
Friction coefficients
Inerta-160 coatings
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA163170
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA163170
Description
Summary:This report presents the results of tests of the ice friction coefficient mu sub k carried out during the May 1984 expedition of the F.S. Polarstern off the coast of Labrador. The test surfaces were Inerta-160-coated steel plates and bare steel plates, hand roughened and sandblasted. The main findings of the studies were: 1) columnar and granular sea ice showed no significant differences in friction coefficient; 2) for columnar ice, mu sub k was independent of ice crystal orientation with respect to test surface; 3) mu sub k was independent of normal pressure applied on ice sample; 4) mu sub k initially decreased with increasing relative velocity between the ice sample and the test surface and reached a steady value at higher speeds; 5) mu sub k increased with increasing surface roughness; 6) a wetting surface exhibited a higher friction coefficient than a non-wetting surface of the same or even higher roughness average.

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