Development of a Viscoelastic Finite Difference Formulation for Analysis of Ice Sheet - Structure Interactions.

Abstract

This work reviews two models of ice sheet interaction with a particular structural shape, an isolated circular pile. A new model is developed using classical small element elastic theory. The ensuing equations are reduced by an adaptation of circular symmetry from a plane stress, two-dimensional representations to an infinite number of one-dimensional representations. The equations are then solved numerically by a finite difference technique and a finite number of solutions are recombined into an approximation of the true solution. The model is extended to a viscoelastic formulation with the Maxwell model. Some results and conclusions concerning areas of potential material failure and frictional effects are drawn. The computer code used is included and suggestions for further improvements are noted. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA072676

Entities

People

  • Michael Wallace Praskievicz

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computational Science
  • Differential Equations
  • Engineering
  • Failure Mode And Effect Analysis
  • Geometric Forms
  • Geometry
  • Glaciers
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Explosives
  • Poisson Ratio
  • Radial Stress
  • Shear Modulus
  • Shear Stresses
  • Stresses
  • Three Dimensional

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.