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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

UTILIZATION OF MICRO X-RAY COMPUTED TOMOGRAPHY FOR THE QUALITY ASSURANCE OF GUN PROPELLANTS

Volumen 15, Ausgabe 4, 2016, pp. 325-338
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2016016753
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ABSTRAKT

Micro X-ray computed tomography (CT) was used to perform quality assurance tests on gun propellant grains to identify defects and measure critical internal geometries. Multiple batches of low-vulnerability ammunition (LOVA) were manufactured and high-resolution three-dimensional (3D) models of the propellant grains were examined. Defects such as shrinkage, cracking, and nonuniform processing were found. Cracks in internal webs were located and the size of the crack was quantified by looking at axial and orthogonal slices of the propellant grain. Micro CT proved capable of providing precise measurements of internal features such as web thickness, which offered information on deformation. Using orthogonal slices the exact thicknesses of individual webs were measured, providing an indication of which areas within the grain would reach sliver point first. Results of multiple web measurements showed that well manufactured grains had normal distribution curves for web thickness with a mean close to the intended design dimension, while poorly manufactured grains do not conform to normal distributions. The study showed that micro X-ray CT is a very effective tool for the nondestructive evaluation of propellant grains and could be used effectively for research and development work on novel propellants.

REFERENZIERT VON
  1. Wang Bo, Wang Jianqiang, Zhang Xiaobing, Investigation of the Thermal Field on Solid Propellant Grain with Cracks by Moving Particle Semi‐Implicit Method, Propellants, Explosives, Pyrotechnics, 47, 2, 2022. Crossref

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