Accession Number:

ADA058354

Title:

The Missing Link between Pressure Waves and Breechblows

Descriptive Note:

Memorandum rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1978-07-01

Pagination or Media Count:

32.0

Abstract:

The stability and reproducibility of the gun interior ballistic environment is one of the chief concerns of the ammunition designer. Investigators are now searching for an analytical tool to aid them in assessing the severity of potentially dangerous pressure waves. Of particular importance is the identification of processes responsible for an apparent transition to runaway pressure levels. Current efforts include application of state-of-the-art, two-phase flow, interior ballistic codes to breech blow environments. However, in most cases, excessive maximum pressures are not predicted to accompany severe pressure waves. Potential missing links, such as transient burning rate enhancement and grain fracture, are postulated, and their impact on the overall ballistic cycle was discussed.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE