An Ice Thickness-Tensile Stress Relationship for Load-Bearing Ice.

• Main Author: Johnson,Philip R
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1980
• Subjects: Snow; Ice and Permafrost; *ICE; THICKNESS; PAYLOAD; LOADS(FORCES); TENSILE STRESS; BEARING STRENGTH; FRESH WATER; SHEETS; GROUND VEHICLES; INLAND WATERWAYS; WU006; WU009; AST42; PE62730A; Ice; Ice Sheet; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA084274; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA084274

The bearing capacity of a floating ice sheet is of considerable interest. The pattern of ice thickness vs tensile stress for a fixed load and fixed ice properties was examined and showed some constant relationships. It proved possible to completely describe the ice thickness-tensile stress pattern in terms of a single number. When the load was changed by increasing the payload but not altering the geometry of the load pattern, other relationships were found that described the tensile stress in the ice sheet for any combination of payload and ice thickness. This provides a simple method of finding tensile stress in the ice that can be used in the field.