The Flow and Fracture of Cracked Ice: Experiments to Aid Modeling

Abstract

I wish to establish whether the leads that form within an anisotropic ice cover at high-latitudes develop from the growth and interaction under far-field compression of pre-existing flaws, such as thermal cracks and re-frozen leads. With this in mind, my near-term objectives are to study and understand the mechanical behavior of columnar sea ice under controlled conditions and to determine the role played by pre-existing flaws. I plan to study the compressive failure pattern on scales accessible to controlled experiments, and then to compare these patterns to those seen on satellite images.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1998
Accession Number
ADA534821

Entities

People

  • Erland M. Schulson

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Artificial Satellites
  • Birds
  • Compression
  • Compressive Strength
  • Ductile Brittle Transition
  • Engineering
  • Far Field
  • Grain Boundaries
  • High Latitudes
  • Ice
  • Ice Mechanics
  • Information Operations
  • Melting Point
  • Sea Ice
  • Strain Rate
  • Transitions

Readers

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

Technology Areas

  • Space