Sea Ice: Part II. Estimating the Full-Scale Tensile, Flexural, and Compressive Strength of First-Year Ice,

Abstract

Sea-ice salinity, density, and temperature data were used to develop new methods for determining the bulk brine volume and porosity of sea-ice floes. Methods for estimating full-thickness ice sheet strength, based on large-scale field tests, are presented. The relationships among bulk sea-ice properties, strain rate, and strength are illustrated. A new constitutive equation was developed for predicting the full-thickness horizontal compressive strength of first-year sea ice as a function of the applied strain rate and bulk porosity. An estimate of the horizontal force that may develop between first-year sea ice and a 90-m-wide structure is given. Estimating sea-ice strength based on remote ice conductivity measurements is also discussed conceptually.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1996
Accession Number
ADA317247

Entities

People

  • Austin Kovacs

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Beaufort Sea
  • Civil Engineering
  • Cold Regions
  • Compressive Strength
  • Conductivity
  • Constitutive Equations
  • Engineering
  • Engineers
  • Equations
  • Failure Mode And Effect Analysis
  • Flexural Strength
  • Glaciers
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Strain Rate
  • Tensile Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Polar and Arctic Studies