General Yield Conditions in a Plasticity Analysis of Soil-Wheel Interaction

Abstract

Plasticity theory and a general representation of the Mohr failure criterion are applied to the problem of soil-wheel interaction. Load, drawbar pull (or drag), torque are computed for a rigid wheel being driven on sand obtained from Jones Beach, Long Island, New York. Analytical results obtained from soutions using a conventional Mohr-Coulcomb linear failure envelope are compared to those obtained from a nonlinear solution. Conclusions are drawn from the comparison that attest the importance of considering the nonlinearity of failure envelopes in certain cases for accuracy of soil-wheel interaction prediction. Preliminary experimental results show reasonable agreement with predicted values of wheel performance parameters.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0754011

Entities

People

  • E. Nowatzki
  • L. Karafiath

Organizations

  • Grumman

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computer Programs
  • Differential Equations
  • Engineering
  • Equations
  • Geometric Forms
  • Geometry
  • Internal Friction
  • Lines (Geometry)
  • Mechanical Properties
  • Mechanics
  • New York
  • Plastic Properties
  • Pressure Distribution
  • Resistance
  • Shear Stresses
  • Soil Mechanics
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.