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dc.contributor.authorLever, J. H.-
dc.contributor.authorAsenath-Smith, Emily.-
dc.contributor.authorTaylor, Susan.-
dc.contributor.authorLines, Austin P.-
dc.identifier.govdocERDC/CRREL MP-21-34-
dc.descriptionMiscellaneous Paperen_US
dc.description.abstractSliding friction on ice and snow is characteristically low at temperatures common on Earth’s surface. This slipperiness underlies efficient sleds, winter sports, and the need for specialized tires. Friction can also play micro-mechanical role affecting ice compressive and crushing strengths. Researchers have proposed several mechanisms thought to govern ice and snow friction, but directly validating the underlying mechanics has been difficult. This may be changing, as instruments capable of micro-scale measurements and imaging are now being brought to bear on friction studies. Nevertheless, given the broad regimes of practical interest (interaction length, temperature, speed, pressure, slider properties, etc.), it may be unrealistic to expect that a single mechanism accounts for why ice and snow are slippery. Because bulk ice, and the ice grains that constitute snow, are solids near their melting point at terrestrial temperatures, most research has focused on whether a lubricating water film forms at the interface with a slider. However, ice is extremely brittle, and dry-contact abrasion and wear at the front of sliders could prevent or delay a transition to lubricated contact. Also, water is a poor lubricant, and lubricating films thick enough to separate surface asperities may not form for many systems of interest. This article aims to assess our knowledge of the mechanics underlying ice and snow friction.en_US
dc.description.sponsorshipUnited States. Army. Corps of Engineers.en_US
dc.format.extent24 pages / 1.51 MB-
dc.publisherCold Regions Research and Engineering Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesMiscellaneous Paper (Engineer Research and Development Center (U.S.)) ; no. ERDC/CRREL MP-21-34-
dc.relation.isversionofLever, James H., Emily Asenath-Smith, Susan Taylor, and Austin P. Lines. "Assessing the mechanisms thought to govern ice and snow friction and their interplay with substrate brittle behavior." Frontiers in Mechanical Engineering 7 (2021): 57.
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectQuasi-liquid layersen_US
dc.subjectIce-rich slurriesen_US
dc.titleAssessing the mechanisms thought to govern ice and snow friction and their interplay with substrate brittle behavioren_US
Appears in Collections:Miscellaneous Paper

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