Tensile Strength of Frozen Silt,

Abstract

Constant strain-rate tension tests were conducted on remolded saturated frozen Fairbanks silt at various temperatures, strain rates, and densities. It was found that the critical strain rate of the ductile-brittle transition is not temperature-dependent at temperatures down to -5 C, but varies with density. The peak tensile strength decreases considerable with decreasing strain rate for ductile failure, but it decreases slightly with increasing strain rate for brittle fracture. The failure strain remains almost constant at temperatures lower than about -2 C, but it varies with density and strain rate at -5 C. The initial tangent modulus is independent of strain rate and increases with decreasing temperature and density. Keywords: Frozen mechanics, Frozen soil, Silt, Soil, Strain, Strength.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1987
Accession Number
ADA185483

Entities

People

  • David L. Carbee
  • Zhu Yuanlin

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Cold Regions
  • Ductile Brittle Transition
  • Engineering
  • Failure Mode And Effect Analysis
  • Low Density
  • Mechanical Properties
  • Mechanics
  • Physical Properties
  • Regions
  • Specific Gravity
  • Stress Strain Relations
  • Stresses
  • Tensile Strain
  • Tensile Strength
  • Transition Temperature
  • Transitions

Fields of Study

  • Engineering

Readers

  • Geotechnical Engineering.
  • Mechanical Engineering/Mechanics of Materials.