High Strain Lagrangian Hydrodynamics: A Three Dimensional SPH Code for Dynamic Material Response

Abstract

MAGI, a three-dimensional shock and material response code which is based on Smoothed Particle Hydrodynamics is described. Calculations are presented and compared with experimental results. The SPH method is unique in that it employs no spatial mesh. The absence of a grid leads to some nice features such as the ability to handle large distortions in a pure Lagrangian frame and a natural treatment of voids. Both of these features are important in the tracking of debris clouds produced by hypervelocity impact, a difficult problem for which Smoothed Particle Hydrodynamics seems ideally suited. It is believed this is the first application of SPH to the dynamics of elastic-plastic solid.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA262798

Entities

People

  • Albert G. Petschek
  • Firooz A. Allahdadi
  • Jim R. Hipp
  • Larry D. Libersky
  • Theodore C. Carney

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Constitutive Equations
  • Differential Equations
  • Equations
  • Fluid Dynamics
  • Hydrodynamics
  • Hypervelocity Impact
  • Impact
  • Lists (Data Structures)
  • Materials
  • Mechanical Properties
  • Mechanics
  • Particles
  • Simulations
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Educational Psychology

Technology Areas

  • Hypersonics