Accession Number:

ADA426121

Title:

Generic Extruded Propellant Grain Surface and Volume Calculations

Descriptive Note:

Final rept. Sep 2003-Mar 2004

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

2004-08-01

Pagination or Media Count:

98.0

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.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE