Numerical Issues in Plasticity Models for Granular Flows

Abstract

Friction plays a fundamental role in the Mechanics of granular materials. Two problems are considered: (i) heap formation, (ii) granular flow. Both problems admit closely related mathematical models. In each case, analytical and numerical difficulties are discussed. Efficient and reliable numerical methods are proposed and implemented. The results are illustrated by several computational experiments.

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Document Details

Document Type
Technical Report
Publication Date
Dec 30, 2002
Accession Number
ADA444427

Entities

People

  • Pierre A. Gremaud

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Computational Science
  • Constitutive Equations
  • Coordinate Systems
  • Equations
  • Equations Of State
  • Flow
  • Fluid Dynamics
  • Friction
  • Geometry
  • Granular Materials
  • Internal Friction
  • Materials
  • Mechanical Properties
  • Mechanics
  • Plastic Properties
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)