Mechanical Properties of Multi-Year Sea Ice. Phase 2. Test Results

This report presents the results of the second phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase 2, 62 constant-strain-rate uniaxial compression tests were performed on horizontal and ve...

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Bibliographic Details
Main Authors: Cox, Gordon F., Richter-Menge, Jacqueline A., Weeks, Wilford F., Bosworth, Hazen, Perron, Nancy
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1985
Subjects:
Snow
Ice and Permafrost
*SEA ICE
MECHANICAL PROPERTIES
STRAIN(MECHANICS)
POROSITY
STRAIN RATE
ICE
SAMPLING
PRESSURE
YIELD
COMPRESSIVE PROPERTIES
RIDGES
BEAUFORT SEA
*MULTIYEAR SEA ICE
Beaufort Sea
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA166333
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA166333
Description
Summary:This report presents the results of the second phase of a test program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. In Phase 2, 62 constant-strain-rate uniaxial compression tests were performed on horizontal and vertical ice samples from multi-year pressure ridges to examine the effect of sample orientation on ice strength. Also conducted were 36 constant-strain-rate tension tests, 55 conventional triaxial tests and 35 constant-load compression tests on multi-year pressure ridge samples to provide data for developing ice yield criteria and constitutive laws. Data are presented on the strength, failure strain and modulus of multi-year sea ice under different loading conditions. The effects of ice temperature, porosity, structure, strain rate, confining pressure and sample orientation on the mechanical properties of multi-year sea ice are examined. See also Phase 1, ADA144132.

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