Soil-Tire Model for the Analysis of Off-Road Tire Performance

Abstract

The analysis of off-road tire performance by riding wheel models yields acceptable results only when the tire is stiff relative to the soil. In cases where the tire stiffness is low relative to the ground it is necessary to consider the effect of tire deformation on soil-tire interaction. A study of available experimental data showed that tire deformation limits the maximum pressure that can develop in the soil under the tire load. On this basis a soil-tire model has been developed that takes the effects of tire deflection into account. Failure conditions in the soil govern the interface stresses where these do not exceed a limit pressure established on the basis of tire deflection; the interface stresses are calculated with consideration of the deflected tire geometry.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0742471

Entities

People

  • Leslie L. Karafiath

Organizations

  • Grumman

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Arm Bones
  • Army
  • Army Corps Of Engineers
  • Computational Science
  • Computations
  • Differential Equations
  • Engineers
  • Experimental Data
  • Friction
  • Geometry
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Pressure Distribution
  • Shear Stresses
  • Stiffness
  • Stress Concentration

Fields of Study

  • Agricultural and Food sciences

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Pavement Materials Engineering.
  • Theoretical Analysis.