Mechanical Properties of Multi-Year Sea Ice. Phase 1: Ice Structure Analysis

This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of...

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Bibliographic Details
Main Authors: Richter-Menge,Jacqueline A, Cox,Gordon F, Perron,Nancy M
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1987
Subjects:
Snow
Ice and Permafrost
*SEA ICE
CRYSTALS
FIELD TESTS
GRAIN SIZE
ICE
MECHANICAL PROPERTIES
ORIENTATION(DIRECTION)
SAMPLING
STRUCTURAL ANALYSIS
TEXTURE
LONG RANGE(TIME)
Multiyear sea ice
Beaufort Sea
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA181205
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA181205
Description
Summary:This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories: granular columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular and/or columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is also considered, based on the extensive field sampling that was done in the program. Keywords: Ice; Ice properties; Ice structure; Mechanical properties; Sea ice.

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