March 3-7, 2014
 

 

 


Sponsored by

Southwest Research Institute®

Course Outline

The course presents the full spectrum of problems encountered in penetration mechanics. It is structured to emphasize the physical basis for analyzing and solving problems in penetration dynamics from low velocities to hypervelocities. Solution techniques are applied to real problems to better understand impact phenomena 
 

Introduction

  • Definition of Impact Regimes

  • Approaches to Modeling

  • Course Outline

Overview of Shaped Charges

  • Basic Theory

  • Analytical Models of Jet/Particle Formation

Fundamental Relationships

  • Conservation Equations

  • Bernoulli's Theorem

  • Wave Mechanics

  • Rankine-Hugoniot Relations, Shock Propagation

  • Equation of State

  • Shock Heating, Melting, Vaporization

Plate Penetration and Perforation

  • Low-Velocity Impact

  • High-Velocity Impact

  • Small Arms

  • Ceramic-Faced Armors

  • Ballistic Fabrics

  • Hypervelocity Impact

 

Material Considerations

  • Metals, Ceramics, Glasses & High-Rate Testing

  • Constitutive Modeling

  • Geologic Materials

  • Fibers, Yarns, Fabrics & Composites

Introduction to Hydrocodes

  • Continuum Equations

  • Difference Equations

  • Requirements of a Difference Solution

  • Treatment of Shocks

  • Eulerian/Lagrangian Descriptions

Nonpenetrating Impacts

  • Impact on a Rigid Target

  • Impact on an Elastic Target

  • Impact of a Fluid Target

  • Impact Flash

Advances in Hydrocodes

  • Eulerian Methods
  • Lagrangian Methods
  • Constitutive Modeling
  • Zoning Requirements
  • ALE
  • AMR
  • Material Failure

Semi-Infinite Targets

  • Penetration of Low-Strength Targets

  • Penetration of High-Strength Targets

 

Applications

  • Mechanics of Penetration & Perforation
  • Projectile Strength Effects
  • Armor Design
  • Shuttle Columbia Accident Investigation
 

Modeling Penetration Mechanics

  • Similitude Analysis, Dimensionless Ratios

  • Replica Scale Modeling

  • Nonreplica Modeling

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Questions or comments? E-mail: jbanda@swri.org