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International Journal of Energetic Materials and Chemical Propulsion

Publicado 6 números por año

ISSN Imprimir: 2150-766X

ISSN En Línea: 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

RECENT DEVELOPMENTS IN GUN PROPELLANTS AND GUN PROPULSION RESEARCH AT S.N.P.E.

Volumen 4, Edición 1-6, 1997, pp. 549-558
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.520
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SINOPSIS

This paper describes recent developments in gun propellants and gun propulsion research from the energetic material point of view, performed under French MOD sponsorship and directed toward providing technical solutions to new weapon system requirements.
The three main types of solid propellants on which research is conducted at SNPE are: conventional nitrocellulose-based and multibased propellants, composite gun propellants based on inert binder and composite gun propellants based on energetic binder. Recent results obtained for each kind are shown and discussed.
Common granulation propellants cannot offer required performance improvement. Modular charges, or charges in two pieces for large caliber guns, need higher loading density to get good ignition, to minimize pressure waves, and to reach required performance levels. Therefore, SNPE performed some studies on new partially-cut multi-perforated propellant sticks ("kerfed" sticks). Some results are presented showing their advantages in better ignition of a modular charge and vulnerability reduction.
For future 45 mm medium caliber guns, consolidated charges obtained by agglomeration of propellant grains with an energetic binder, provide up to a 40 % increase in volumetric loading. This configuration of grains allows caseless ammunition manufacturing and also charge arrangement for telescoped projectiles.
The paper also describes recent improvements in theoretical dimensioning tools developed by SNPE, which help in diagnosis, research orientation, and firing behavior prediction. The thermodynamics code BAGHEERA has been adopted by NATO, the chemical kinetic code BALOO takes into account new propellant types and gun barrel wear; the interior ballistic code family MOBIDIC has been selected at the French national level for future research. The last includes a version with internal boundaries and is able to take into account discontinuities.

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