A Macroscopic View of Snow Deformation under a Vehicle.

• Main Authors: Richmond,Paul W, Blaisdell,George L
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1981
• Subjects: Snow; Ice and Permafrost; *SNOW; DENSITY; MOBILITY; LABORATORY TESTS; LOADS(FORCES); DEFORMATION; VEHICLES; TRANSFER; LAND MINES; PE62730A; AST42; WU015; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/ADA107038; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA107038

For snow with an initial density of less than 0.45 Mg/cu m, load transfer through shallow snow is shown to be attenuated by an interfacial boundary force. Evidence is presented that shows the existence of a density distribution in the deformed area. Results of a laboratory plate-sinkage test on sintered snow support this analysis. Maximum value obtained for the interfacial boundary force range from 1335 to 2670 N when the average density of the deformed area is about 0.5 Mg/cu m.