USE OF ICE AS A LOAD-SUPPORTING SURFACE
Ice in the mass is perhaps best described as a highly viscous material having the characteristics of a solid. It may fracture like a brittle material, or it may flow and deform gradually depending upon the intensity of the stress and rate of loading, the temperature, the degree of confinement and th...
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ftdtic:AD0659332 2023-05-15T15:09:04+02:00 USE OF ICE AS A LOAD-SUPPORTING SURFACE Linell,Kenneth A. ARCTIC CONSTRUCTION AND FROST EFFECTS LAB BOSTON MASS 1958-08 text/html http://www.dtic.mil/docs/citations/AD0659332 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0659332 en eng http://www.dtic.mil/docs/citations/AD0659332 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost *ICE *LOADS(FORCES) *LOAD DISTRIBUTION SURFACES ARCTIC REGIONS TRANSPORTATION MILITARY OPERATIONS LANDING FIELDS CONSTRUCTION DEFORMATION STRESSES ELASTIC PROPERTIES THICKNESS AIRCRAFT LANDING MAINTENANCE Text 1958 ftdtic 2016-02-21T15:51:55Z Ice in the mass is perhaps best described as a highly viscous material having the characteristics of a solid. It may fracture like a brittle material, or it may flow and deform gradually depending upon the intensity of the stress and rate of loading, the temperature, the degree of confinement and the structure of the ice itself. The proportional limit of the stress-strain curve for ice has been reported to be on the order of 20 to 25 psi or even less. At higher static load intensities ice will deform at a steady rate; the higher the stress, the higher the rate. Since floating ice is normally stressed to far beyond the proportional limit in order to carry useful loads, theoretical stress analysis methods using the theory of elasticity become no longer strictly applicable and must be applied with caution. Fortunately most load applications of appreciable magnitude on floating ice involve periods of stress duration much shorter than the structural designer deals with in the case of permanent structures, such as buildings and bridges, and the plastic deformation is usually not as serious a matter as it might seem. Prepared for presentation at the American Society of Civil Engineers Annual Convention at New York, N. Y., October 23, 1951. Text Arctic Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Arctic Psi ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost *ICE *LOADS(FORCES) *LOAD DISTRIBUTION SURFACES ARCTIC REGIONS TRANSPORTATION MILITARY OPERATIONS LANDING FIELDS CONSTRUCTION DEFORMATION STRESSES ELASTIC PROPERTIES THICKNESS AIRCRAFT LANDING MAINTENANCE |
spellingShingle |
Snow Ice and Permafrost *ICE *LOADS(FORCES) *LOAD DISTRIBUTION SURFACES ARCTIC REGIONS TRANSPORTATION MILITARY OPERATIONS LANDING FIELDS CONSTRUCTION DEFORMATION STRESSES ELASTIC PROPERTIES THICKNESS AIRCRAFT LANDING MAINTENANCE Linell,Kenneth A. USE OF ICE AS A LOAD-SUPPORTING SURFACE |
topic_facet |
Snow Ice and Permafrost *ICE *LOADS(FORCES) *LOAD DISTRIBUTION SURFACES ARCTIC REGIONS TRANSPORTATION MILITARY OPERATIONS LANDING FIELDS CONSTRUCTION DEFORMATION STRESSES ELASTIC PROPERTIES THICKNESS AIRCRAFT LANDING MAINTENANCE |
description |
Ice in the mass is perhaps best described as a highly viscous material having the characteristics of a solid. It may fracture like a brittle material, or it may flow and deform gradually depending upon the intensity of the stress and rate of loading, the temperature, the degree of confinement and the structure of the ice itself. The proportional limit of the stress-strain curve for ice has been reported to be on the order of 20 to 25 psi or even less. At higher static load intensities ice will deform at a steady rate; the higher the stress, the higher the rate. Since floating ice is normally stressed to far beyond the proportional limit in order to carry useful loads, theoretical stress analysis methods using the theory of elasticity become no longer strictly applicable and must be applied with caution. Fortunately most load applications of appreciable magnitude on floating ice involve periods of stress duration much shorter than the structural designer deals with in the case of permanent structures, such as buildings and bridges, and the plastic deformation is usually not as serious a matter as it might seem. Prepared for presentation at the American Society of Civil Engineers Annual Convention at New York, N. Y., October 23, 1951. |
author2 |
ARCTIC CONSTRUCTION AND FROST EFFECTS LAB BOSTON MASS |
format |
Text |
author |
Linell,Kenneth A. |
author_facet |
Linell,Kenneth A. |
author_sort |
Linell,Kenneth A. |
title |
USE OF ICE AS A LOAD-SUPPORTING SURFACE |
title_short |
USE OF ICE AS A LOAD-SUPPORTING SURFACE |
title_full |
USE OF ICE AS A LOAD-SUPPORTING SURFACE |
title_fullStr |
USE OF ICE AS A LOAD-SUPPORTING SURFACE |
title_full_unstemmed |
USE OF ICE AS A LOAD-SUPPORTING SURFACE |
title_sort |
use of ice as a load-supporting surface |
publishDate |
1958 |
url |
http://www.dtic.mil/docs/citations/AD0659332 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0659332 |
long_lat |
ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Arctic Psi |
geographic_facet |
Arctic Psi |
genre |
Arctic Ice permafrost |
genre_facet |
Arctic Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0659332 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766340296846606336 |