Laboratory And Field Scale Fracture Of Sea Ice.

Abstract

This report contains details of laboratory and field scale studies carried out to study fracture of sea ice. The field scale studies were carried out in six field trips on in-situ arctic sea ice. Lab scale studies were carried out on the samples obtained from cores taken from the sea ice during the field trips. The details of the experimental method and portable loading system specifically designed for these tests are given. The first two field trips are analyzed to reveal the size effect on the fracture of S1 freshwater and S2 sea ice. The analysis is carried out using size effect laws. To analyze the creep-recovery and cyclic loading experiment, a model based on the nonlinear theory of viscoelasticity is proposed. It is shown that the model is capable of predicting the load-deformation paths under simple loading histories.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1996
Accession Number
ADA321960

Entities

People

  • John P. Dempsey

Organizations

  • Clarkson University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Creep
  • Data Acquisition
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Flexural Strength
  • Fracture (Mechanics)
  • Glaciers
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Notch Sensitivity
  • Physical Properties
  • Test Methods

Readers

  • Materials Science (Mechanical Engineering).
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Polar and Arctic Studies