STRENGTH STUDIES ON ARTARCTIC SEA ICE

The strength of sea ice was studied at McMurdo, Antarctica, during two successive field seasons. Three hundred tensile tests were made on continuous core samples taken at various locations on ice aged 1 year, 2 years, and more than 5 years. Salinity profiles were obtained for each core. A relationsh...

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Bibliographic Details
Main Author: Hendrickson,George
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1965
Subjects:
(*ICE ISLANDS
STRENGTH(PHYSIOLOGY))
POLAR REGIONS
SEA WATER
ICE
PHYSICAL PROPERTIES
Arctic
Antarc*
Antarctica
Sea ice
Online Access:http://www.dtic.mil/docs/citations/AD0622773
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0622773
Description
Summary:The strength of sea ice was studied at McMurdo, Antarctica, during two successive field seasons. Three hundred tensile tests were made on continuous core samples taken at various locations on ice aged 1 year, 2 years, and more than 5 years. Salinity profiles were obtained for each core. A relationship between strength sigma (kg/sq cm) and volume of brine cavities v (%0), as suggested by Assur, adequately represents the data for brine volumes less than 0.400: sigma = 29.1 - 48.0 v to the 1/2 power. The constants agree satisfactorily with values obtained previously for Arctic sea ice, the value of sigma for very low brine volume approaching the value for fresh-water ice. The model on which the above expression is based apparently breaks down at high brine volumes. (Author)

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