Modelling & Observation of Crack Nucleation in Ice Due to Elastic & Plastic Anisotropy.

Abstract

The primary result of this project are a clear understanding of the processes which initial cracks in columnar ice under typical conditions. The primary material of study was laboratory-grown freshwater ice, in which the crystals grew as long columns with diameters in the range of a few millimeters. For some fracture toughness measurements we used large single crystals of freshwater ice. Some related work has also been done on laboratory-grown columnar saline ice.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1996
Accession Number
ADA317344

Entities

People

  • Harold J. Frost

Organizations

  • Dartmouth College

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Anisotropy
  • Applied Mechanics
  • Boundaries
  • Crystals
  • Geometry
  • Grain Boundaries
  • Ice Mechanics
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanics
  • New Hampshire
  • Nucleation
  • Observation
  • Single Crystals
  • Stress Concentration
  • Toughness

Readers

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