Accession Number:

ADA513206

Title:

Benchmark Tests for Fragmentation and Propagation Models

Descriptive Note:

Conference paper

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1998-08-01

Pagination or Media Count:

16.0

Abstract:

The FRAGPROP model predicts probabilities of propagation of detonation and burning between ammunition stacks. In order to benchmark predictions from FRAGPROP, propagation tests using 155-mm M107 ammunition were conducted. The predicted frequencies of detonation and burning propagation are somewhat greater than those observed in the tests. While the results do not provide sufficient data to validate the FRAGPROP predictions with a high level of confidence, they indicate that they are reasonable representations of the actual responses of these munitions. FRAGGEN is a simple model for estimating the fragment output. In order to benchmark its predictions of fragmentation from a missile warhead, an arena test on a single Hellfire missile was performed. Analysis indicates that the predicted distribution is accurate for the smallest fragments. Measured fragment velocities were much lower than the Gurney predictions employed by FRAGGEN. Because the configuration used in the single Hellfire test does not represent the actual storage arrangement, an arena test on two Hellfire missiles in their containers was conducted. Comparison of the fragment mass distributions produced in the two tests indicates depopulation of the smaller fragment sizes in the second test. This renders the FRAGGEN predictions inaccurate. A final arena test with two 155-mm M864 ICM projectiles containing submunitions, conducted in an attempt to develop fragmentation data for this configuration, was not successful.

Subject Categories:

  • Computer Programming and Software
  • Safety Engineering
  • Logistics, Military Facilities and Supplies
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE