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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

TRANSIENT BURNING BEHAVIOR OF PHASE-STABILIZED AMMONIUM NITRATE BASED AIRBAG PROPELLANT

Volumen 11, Edición 5, 2012, pp. 473-486
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2013005394
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SINOPSIS

Understanding the burning rate of an automotive airbag propellant is extremely important. Airbag propellants need to produce gas on the order of milliseconds. The speed with which the airbag inflator needs to work ensures that the propellant experiences a large pressure transient during combustion. Therefore, one factor that needs to be considered with airbag propellant combustion is how the propellant burns under a rapidly changing chamber pressure. This paper presents the results from a study on the dynamic burning behavior of a phase-stabilized ammonium nitrate (PSAN) propellant during rapid pressure changes. First, the steady-state burning behavior of the propellant was investigated with an optical strand burner and it was found that the burn rate could befit to Saint-Robert's law with the expression being rb,ss = 1.393P0.873 for pressures up to 28 MPa and rb,ss = 3.779P0.570 for higher pressures. Second, the dynamic burning behavior of the propellant was measured directly in an "O-frame" chamber that used real-time x-ray radiography (RTR) to measure the instantaneous regression behavior of the propellant. For high-pressurization rate tests (~2000 MPa/s), the dynamic burning rate was found to be almost twice the steady-state value. Finally, the dynamic burning data taken from pressure and RTR system measurements was fit to a correlation relating the dynamic burning rate to the instantaneous chamber pressure and pressurization rate. Almost all of the experimentally determined dynamic burn rates were found to be within ±15% of the correlated expression.

REFERENCIAS
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