DENSITY, TEMPERATURE AND THE UNCONFINED COMPRESSIVE STRENGTH OF POLAR SNOW

Abstract

The relationships between several empirical and theoretical methods of determining the unconfined compressive strength of polar snow from depth- density and temperature profiles are discussed and graphically compared. Two unconfined compressive strength equations are proposed for snow at -10 degrees C. The formulas take into consideration the decided changes in slope of the Young's and shear modulus curves at a density of 0.5 g/cm3 for Greenland snow. The slope changes signify that at this density a structural and, therefore, a strength change occur. Analysis of existing test data confirms this reasoning.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1967
Accession Number
AD0660309

Entities

People

  • Austin Kovacs

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Cold Regions
  • Compressive Strength
  • Data Analysis
  • Engineering
  • Fresh Water Ice
  • High Density
  • Low Density
  • Mathematical Analysis
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Regions
  • Shear Modulus
  • Snow
  • Statistical Data
  • Strain Rate
  • Tensile Strength

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Polar and Arctic Studies
  • Theoretical Analysis.