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

M A G I , a three-dimensional shock and material response code which is based on smoothed particle hydrodynamics (SPH) 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 nic...

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Bibliographic Details
Published in:Journal of computational physics 1993, Vol.109 (1), p.67-75
Main Authors: Libersky, Larry D., Petschek, Albert G., Carney, Theodore C., Hipp, Jim R., Allahdadi, Firooz A.
Format: Article
Language:English
Subjects:
990200 > Mathematics & Computers
ADVECTION
Classical and quantum physics: mechanics and fields
Classical mechanics of continuous media: general mathematical aspects
Computational methods in fluid dynamics
Computational techniques
COMPUTERIZED SIMULATION
DEFORMATION
Exact sciences and technology
Fluid mechanics: general mathematical aspects
GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MASS TRANSFER
MATERIALS SCIENCE
Mathematical methods in physics
Molecular dynamics and particle methods
Physics
SIMULATION 360103 > Metals & Alloys-- Mechanical Properties
SOLIDS
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Description
Summary:M A G I , a three-dimensional shock and material response code which is based on smoothed particle hydrodynamics (SPH) 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 SPH seems ideally suited. We believe this is the first application of SPH to the dynamics of elastic-plastic solids.
ISSN:0021-9991
1090-2716
DOI:10.1006/jcph.1993.1199