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International Journal of Energetic Materials and Chemical Propulsion

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 2150-766X

ISSN Online: 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

NOVEL APPROACH TO MAKE HUGONIOT PREDICTIONS: QUANTUM MECHANICS/MOLECULAR DYNAMICS CALCULATIONS

Volumen 15, Ausgabe 2, 2016, pp. 89-111
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015014109
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ABSTRAKT

This paper proposes a novel approach to predict Hugoniot properties to characterize explosives materials. The originality and uniqueness of the approach consists in using together quantum mechanics, molecular dynamics calculations combined with known analytical methods. Indeed, four highly experimentally characterized energetic materials, cyclotrimethylenetrinitramine (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), pentaerythritol tetranitrate (PETN) and triaminotrinitrobenzene (TATB), were investigated using quantum mechanics calculations and analytical methods. Using the pressure p and the ratio of specific densities v/v0, the p-v Hugoniot diagrams were obtained. Detonation velocities D were determined and used to define the Raleigh line. For the four compounds, the ratio of specific heats γ, a value between 2 and 3, was obtained. The γ effect, in terms of sensitivity and importance, was demonstrated. At the Chapman−Jouguet (CJ) state, the parameters (shock, particle and detonation velocities, CJ pressure and density, ratio of specific heats, and Hugoniot diagrams) were predicted and all compared quite well with the published experimental data. Moreover, molecular dynamics simulations were carried out to obtain the compression p-v diagrams. Using the isothermal-isobaric ensemble (NPT), molecular dynamics simulations were conducted at various pressures ranging from 2 to 40 GPa with progressive increments of 2 GPa. The Rankine−Hugoniot jump conditions were considered, and the associated shock speed Us and particle velocity up for each pressure p and relative volumetric change v/v0 were calculated. The simulations showed that a linear behavior exists between Us and up for the four explosives investigated.

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