Epic-2 Calculated Impact Loading Histories of Thin Plates

Abstract

Although the EPIC-2 code can predict the ballistic shock environments in projectile-impacted targets, these targets must be axisymmetric. By modifying the code to calculate the history of an impacting projectile on the target, one can use the loading history as input for a finite element analysis of the ballistic shock in non-axisymmetric targets. Loading histories of 20 mm fragment simulator projectiles for impact velocities of 366 m/s and 1012m/s on 38mm x 914 mm circular rolled homogeneous armor plates have been calculated by the EPIC-2 code and have been used in ADINA finite element structural response analyses of the plate. Comparisons of EPIC-2 and ADINA responses calculations show that the EPIC-2 code can be used to calculate loading histories which do represent the loading of a target by nonperforating projectiles. Keywords: Terminal ballistics, Impact, Computer programs, EPIC-2, ADINA, Penetration mechanics, Ballistic impact, Shock, Loading histories, Shock spectra, Computer simulation, Hydro-code, Finite element code.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA210557

Entities

People

  • Ennis F. Quigley

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Armor
  • Armor Plate
  • Axisymmetric
  • Classification
  • Computer Simulations
  • Environment
  • Finite Element Analysis
  • Frequency
  • Impact Point
  • Projectiles
  • Rolled Homogeneous Armor
  • Security
  • Shock Response Spectra
  • Simulations
  • Simulators
  • Spectra
  • Structural Response

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)