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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

SENSITIVITY OF POLYMER-BONDED EXPLOSIVES FROM MOLECULAR MODELING DATA

Volumen 16, Ausgabe 4, 2017, pp. 367-382
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2018021264
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ABSTRAKT

Sensitive energetic materials are an issue for military and civilian applications. To prevent undesired explosions, sensitive energetic materials are embedded in a protective polymer, resulting in polymer-bonded explosives (PBX). The appropriate polymer will absorb part of the energy caused by stimuli such as shock, impact, friction, and heat, thus decreasing sensitivity. To investigate how an appropriate polymer absorbs energy, three PBX models were simulated using molecular dynamics. The COMPASS force field implemented in the Materials Studio software was used. Molecular dynamics simulations were performed for three RDX-based formulations in which a single polymer chain (HTPB, Estane, or EVA) was placed at the boundary surface of an RDX crystal. Simulations were carried out at high temperature (700 K) and high pressure (15 GPa). The resulting models were analyzed in terms of potential energy increase, energy distribution, and values of the different potential energy contributions for RDX/HTPB, RDX/Estane, and RDX/EVA. The polymer binders HTPB, Estane, and EVA in such PBX formulations absorbed between 24% and 31% of internal energy, respectively, thereby making less sensitive PBXs formulations than pure RDX. This percentage is proposed as an indicator key for experimentalists to determine the most efficient polymer that can be used, for a given explosive, to minimize munition sensitivity. A clear correlation is established between the calculated absorption of internal energy by polymers and experimental sensitivity values for the three formulations studied under extreme experimental conditions. This approach may be applied to other new formulations prior to testing them in laboratories.

REFERENZIERT VON
  1. Huang Ying, Gou Ruijun, Zhang Shuhai, Yuan Xiaofeng, Chen Yahong, Comprehensive theoretical study on safety performance and mechanical properties of 3-nitro-1,2,4-triazol-5-one (NTO)–based polymer-bonded explosives (PBXs) via molecular dynamics simulation, Journal of Molecular Modeling, 28, 12, 2022. Crossref

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