SEA ICE STRENGTH.
The report contains the results from a study of the mechanical and structural properties of sea ice; the study commenced in 1958 and was completed in late 1965. Most of the experimental work is based upon stress-strain tests in both direct compression and direct tension. Approximately 3800 of these...
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ftdtic:AD0653883 2023-05-15T15:09:44+02:00 SEA ICE STRENGTH. Peyton,Harold R. ALASKA UNIV COLLEGE GEOPHYSICAL INST 1966-12 text/html http://www.dtic.mil/docs/citations/AD0653883 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0653883 en eng http://www.dtic.mil/docs/citations/AD0653883 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost (*SEA ICE MECHANICAL PROPERTIES) COMPRESSIVE PROPERTIES TENSILE PROPERTIES EXPERIMENTAL DATA STRUCTURAL PROPERTIES FAILURE(MECHANICS) ARCTIC OCEAN ALASKA COOK INLETS Text 1966 ftdtic 2016-02-18T20:11:43Z The report contains the results from a study of the mechanical and structural properties of sea ice; the study commenced in 1958 and was completed in late 1965. Most of the experimental work is based upon stress-strain tests in both direct compression and direct tension. Approximately 3800 of these tests were made. Those parameters anticipated to have significant effect upon strength were measured: temperature, salinity, rate of loading, crystal size, crystallographic orientation, history of the ice and depth in the ice sheet. All of these are found to be significant except that the history factor itself tended to be determined by the other parameters. The analysis was accomplished primarily by testing models by linear multiple regression. The models selected yield good results with multiple correlation coefficients between 0.70 and 0.98 over a range of petrofabric types. Additional work accomplished in conjunction with construction of offshore oil drilling platforms had provided significant information concerning oscillatory failure of sea ice in compression and strength reduction at very high load rates. The ice failure force oscillation is an ice property and is not primarily a function of the response of the structure. The magnitude of oscillation is large and at a frequency in the range of most space frame structures. The failing ice may cause forced resonant vibration in structures, and the forces are large enough to resonantly vibrate structure weighing several thousand tons. (Author) Text Arctic Arctic Ocean Ice Ice Sheet permafrost Sea ice Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost (*SEA ICE MECHANICAL PROPERTIES) COMPRESSIVE PROPERTIES TENSILE PROPERTIES EXPERIMENTAL DATA STRUCTURAL PROPERTIES FAILURE(MECHANICS) ARCTIC OCEAN ALASKA COOK INLETS |
spellingShingle |
Snow Ice and Permafrost (*SEA ICE MECHANICAL PROPERTIES) COMPRESSIVE PROPERTIES TENSILE PROPERTIES EXPERIMENTAL DATA STRUCTURAL PROPERTIES FAILURE(MECHANICS) ARCTIC OCEAN ALASKA COOK INLETS Peyton,Harold R. SEA ICE STRENGTH. |
topic_facet |
Snow Ice and Permafrost (*SEA ICE MECHANICAL PROPERTIES) COMPRESSIVE PROPERTIES TENSILE PROPERTIES EXPERIMENTAL DATA STRUCTURAL PROPERTIES FAILURE(MECHANICS) ARCTIC OCEAN ALASKA COOK INLETS |
description |
The report contains the results from a study of the mechanical and structural properties of sea ice; the study commenced in 1958 and was completed in late 1965. Most of the experimental work is based upon stress-strain tests in both direct compression and direct tension. Approximately 3800 of these tests were made. Those parameters anticipated to have significant effect upon strength were measured: temperature, salinity, rate of loading, crystal size, crystallographic orientation, history of the ice and depth in the ice sheet. All of these are found to be significant except that the history factor itself tended to be determined by the other parameters. The analysis was accomplished primarily by testing models by linear multiple regression. The models selected yield good results with multiple correlation coefficients between 0.70 and 0.98 over a range of petrofabric types. Additional work accomplished in conjunction with construction of offshore oil drilling platforms had provided significant information concerning oscillatory failure of sea ice in compression and strength reduction at very high load rates. The ice failure force oscillation is an ice property and is not primarily a function of the response of the structure. The magnitude of oscillation is large and at a frequency in the range of most space frame structures. The failing ice may cause forced resonant vibration in structures, and the forces are large enough to resonantly vibrate structure weighing several thousand tons. (Author) |
author2 |
ALASKA UNIV COLLEGE GEOPHYSICAL INST |
format |
Text |
author |
Peyton,Harold R. |
author_facet |
Peyton,Harold R. |
author_sort |
Peyton,Harold R. |
title |
SEA ICE STRENGTH. |
title_short |
SEA ICE STRENGTH. |
title_full |
SEA ICE STRENGTH. |
title_fullStr |
SEA ICE STRENGTH. |
title_full_unstemmed |
SEA ICE STRENGTH. |
title_sort |
sea ice strength. |
publishDate |
1966 |
url |
http://www.dtic.mil/docs/citations/AD0653883 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0653883 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Ice Ice Sheet permafrost Sea ice Alaska |
genre_facet |
Arctic Arctic Ocean Ice Ice Sheet permafrost Sea ice Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0653883 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766340868903534592 |