Accession Number:
ADA317247
Title:
Sea Ice: Part II. Estimating the Full-Scale Tensile, Flexural, and Compressive Strength of First-Year Ice,
Descriptive Note:
Corporate Author:
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Personal Author(s):
Report Date:
1996-09-01
Pagination or Media Count:
24.0
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.
Descriptors:
Subject Categories:
- Snow, Ice and Permafrost
- Physical and Dynamic Oceanography