图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际能源材料和化学驱动期刊
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN 打印: 2150-766X
ISSN 在线: 2150-7678

国际能源材料和化学驱动期刊

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005291
pages 361-370

CHARACTERIZING 5.56-mm CARTRIDGE PERFORMANCE WITH NOVEL MEASUREMENT TECHNIQUES

John J. Ritter
U.S. Army Research Laboratory, RDRL-WML-D, B390, Aberdeen Proving Ground, Maryland 21005

ABSTRACT

A custom, in-house designed breech for an M16A1 Mann barrel, 5.56 mm, has been instrumented to measure the force output of an unsupported primer. In addition, the Mann barrel is designed to accept gauges at two diametrically opposed locations to simultaneously measure mid-case chamber pressure. This one-of-a-kind apparatus provides an advanced diagnostic tool to gain insight into the interactions between the primer and propellant bed of the 5.56-mm cartridge during ignition, and allows for enhanced characterization and understanding of the cartridge's interior ballistics. The experiments performed investigate the role of the primer, cartridge temperature conditioning, and charge weights in their respective effects on chamber pressures and primer forces. The results indicate the primer force measurement is an invaluable tool in evaluating the interior ballistics of the 5.56-mm cartridge and it provides information that the more standard mid-case or case-mouth pressure techniques overlook. This pioneering system-level approach provides detail into the primer/propellant interactions never before observed by analyzing the primer and propellant outputs simultaneously within a closed system. In addition, this diagnostic technique provides further early time data. It advances the initial data acquisition timeframe to when the firing pin strikes the primer, whereas previous diagnostic techniques began when the propellant gas generation is first recorded. The additional data gained through the primer force measurement provide investigators a new avenue into malfunction investigations, as well as giving formulators and designers an additional tool to characterize the performance of new primer and/or propellant formulations in search of the optimized weapon cartridge.


Articles with similar content:

BASIC STUDY OF GAS GENERANT IN AIR BAG INFLATORS
International Journal of Energetic Materials and Chemical Propulsion, Vol.8, 2009, issue 4
Shogo Tomiyama, Makihito Nishioka, Toshiyuki Katsumi, Keiichi Hori, Yutaka Wada
THE EFFECT OF MULTIPHASE FLOW BEHAVIOUR ON A HORIZONTAL ANNULUS BY INTEGRATING HIGH-SPEED IMAGING TECHNIQUE
4th Thermal and Fluids Engineering Conference, Vol.11, 2019, issue
Ibrahim Hassan, Moustafa Hussein Ali, Syed Raza ur Rehman, Anwarul Hasan, Mohammad Azizur Rahman, Rashid Hasan, Alap Ali Zahid
ENVIRONMENTAL CHARACTERIZATION OF MILITARY TRAINING RANGES FOR MUNITIONS-RELATED CONTAMINANTS: UNDERSTANDING AND MINIMIZING THE ENVIRONMENTAL IMPACTS OF LIVE-FIRE TRAINING
International Journal of Energetic Materials and Chemical Propulsion, Vol.11, 2012, issue 1
Marianne E Walsh, Geoffrey I. Sunahara, T. F. Jenkins, Jalal Hawari, Sylvie Brochu, Michael R. Walsh, I. Poulin, Emmanuela Diaz, Richard Martel, Guy Ampleman, Sonia Thiboutot
APPROPRIATENESS OF BURNING RATE MEASURING TECHNIQUE WITH THE MEASURING CONDITIONS AND REQUESTED DATA
International Journal of Energetic Materials and Chemical Propulsion, Vol.17, 2018, issue 4
Ondrej Vodochodsky, Ahmed Maraden, Robert Matyas, Petr Stojan
INSENSITIVE MUNITIONS PROPULSION PROGRESS
International Journal of Energetic Materials and Chemical Propulsion, Vol.4, 1997, issue 1-6
C. J. Thelen, S. C. DeMay