Validation of the Cavity Expansion Resistance Model for Ceramic Targets with Computer Simulations.

Abstract

In previous work we developed a model to predict the resistance (Rt) of ceramic targets to long rod penetration. The model was based on the cavity expansion model of Bishop, Hill, and Mott. Here we use computer simulations with the CTH code to validate our Rt model. We show that our model reproduces quite well the increase of Rt with the strength-pressure parameter, and with the cap pressure in the strength model. The increase of Rt with impact velocity predicted by the model is somewhat higher than that obtained from the simulations. We propose an explanation for this discrepancy that needs to be verified.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1993
Accession Number
ADA313988

Entities

People

  • David Littlefield
  • Yehuda Partom

Organizations

  • University of Texas at Austin

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Computer Simulations
  • Computers
  • Dynamic Pressure
  • Equations
  • Equations Of State
  • Flow
  • Flow Fields
  • Granular Materials
  • Materials
  • Military Research
  • Projectiles
  • Radial Flow
  • Resistance
  • Simulations
  • Tungsten Alloys
  • Validation

Readers

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  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering