Small Strain Response of Random Arrays of Elastic Spheres Using a Nonlinear Distinct Element Procedure

Abstract

Granular soil is presented in this work by 2-D random arrays of elastic, rough, quartz sphere using the 'distinct element' method. The original 3-D computer code TRUBAL, originally developed by Peter Cundall, has been modified at RPI by the introduction of a general solution to the Hertz-Mindlin contact problem. This was achieved by attaching a subroutine to the original code, which describes the nonlinear force-displacement relationship at the intergranular contacts, by means of plasticity theory and kinematic hardening. The above modified program (CONBAL-2) developed as part of another RPI project, can perform 2-D simulations and has already been used to study the dynamic small strain behavior as well as the large strain behavior of sand.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1988
Accession Number
ADA198281

Entities

People

  • Emmanuel Petrakis
  • Ricardo Dobry
  • Tang-tat Ng

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Civil Engineering
  • Crystal Structure
  • Engineering
  • Experimental Data
  • Frequency
  • Geotechnical Engineering
  • Granular Materials
  • Materials
  • Mechanics
  • New York
  • Shear Modulus
  • Stress Strain Relations
  • Three Dimensional
  • Two Dimensional
  • United States
  • Wave Propagation

Readers

  • Computer Science.
  • Geotechnical Engineering.
  • Structural Dynamics.