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International Journal of Energetic Materials and Chemical Propulsion

年間 6 号発行

ISSN 印刷: 2150-766X

ISSN オンライン: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

CHARACTERIZING 5.56-mm CARTRIDGE PERFORMANCE WITH NOVEL MEASUREMENT TECHNIQUES

巻 12, 発行 4, 2013, pp. 361-370
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005291
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要約

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.

によって引用された
  1. Zhang Zi Xiao, Kong De Ren, Wang Fang, Jiang Tao, Effect of Annealing Process on the Performance of Pressure of the φ3.5mm×8.75mm Cylindrical Copper Cylinder, Applied Mechanics and Materials, 863, 2017. Crossref

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