A Simple Elastic Constitutive Equation for Granular Material

Abstract

In the past or until recently the majority of stress-deformation and stability analyses have been restricted to ideal material behavior. Such idealizations in material properties and geometrical conditions may lead to divergence between observed and predicted behavior. Realistic stress and deformation analyses of homogeneous earth masses or soil-structure interaction problems using numerical techniques such as the finite element and finite difference methods require the formulation of a constitutive model for the soil and structural materials. A literature review made in this study indicated that most procedures used in modeling soils are based on the theory of elasticity and curve fitting. (This study is limited to constitutive models which are based on theory of elasticity). Linear, bilinear, trilinear, and hyperbolic models provide, under special conditions, good agreement between observed and predicted soil behavior.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
AD0781487

Entities

People

  • Mosaid M. Al-hussaini

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Civil Engineering
  • Constitutive Equations
  • Curve Fitting
  • Elastic Materials
  • Elastic Properties
  • Engineers
  • Equations
  • Finite Element Analysis
  • Geotechnical Engineering
  • Granular Materials
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Shear Modulus
  • Shear Tests
  • Soil Mechanics
  • Stress Strain Relations

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.
  • Theoretical Analysis.