Generic Extruded Propellant Grain Surface and Volume Calculations

Abstract

Experimental propelling charges that have non-standard extruded granular shapes require calculations of available burning surface area in order to be simulated by interior ballistic (IB) modeling applications. Formerly, extensive hand calculations or development of a one-of-a-kind form function was necessary in order to analyze the changes in surface area whenever non-standard grain geometries were to be used in experimental gun propelling charges. A quick. easy-to-use computer program has been developed to calculate surface and volume of propellant grains versus depth burning by an analysis of propellant slivers; the results are then added to create a full-grain form function. The resultant data can be used in IB programs to estimate maximum pressures and projectile velocities from experimental propelling charges and gun systems.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2004
Accession Number
ADA426121

Entities

People

  • Ronald D. Anderson

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Resistance
  • Ammunition
  • Burning Rate
  • Computations
  • Computer Programs
  • Computers
  • Equations
  • Geometric Forms
  • Geometry
  • Materials
  • Projectiles
  • Propellant Grains
  • Propellants
  • Propelling Charges
  • Simulations
  • Standards
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Mechanical Engineering/Mechanics of Materials.
  • ballistics.