Study of Plastic Explosives based on Attractive Cyclic Nitramines Part I. Detonation Characteristics of Explosives with PIB Binder

2011 ◽  
Vol 36 (5) ◽  
pp. 433-438 ◽  
Author(s):  
Ahmed Elbeih ◽  
Jiři Pachman ◽  
Waldemar A. Trzciński ◽  
Svatopluk Zeman ◽  
Zbyněk Akštein ◽  
...  
Keyword(s):  
Cyclic Nitramines ◽  
Plastic Explosives ◽  
Detonation Characteristics

Study of Plastic Explosives based on Attractive Cyclic Nitramines, Part II. Detonation Characteristics of Explosives with Polyfluorinated Binders

2013 ◽  
Vol 38 (2) ◽  
pp. 238-243 ◽  
Author(s):  
Ahmed Elbeih ◽  
Jiri Pachman ◽  
Svatopluk Zeman ◽  
Waldemar A. Trzcinski ◽  
Muhamed Suceska
Keyword(s):  
Cyclic Nitramines ◽  
Plastic Explosives ◽  
Detonation Characteristics

Application of cis-1,3,4,6-Tetranitrooctahydroimidazo-[4,5d] Imidazole (BCHMX) in EPX-1 Explosive

2016 ◽  
Vol 66 (5) ◽  
pp. 499 ◽  
Author(s):  
Ahmed Elbeih ◽  
Tamer Elshenawy ◽  
Mohamed Gobara
Keyword(s):  
Friction Force ◽  
Impact Energy ◽  
Dibutyl Phthalate ◽  
Decomposition Temperature ◽  
Experimental Measurements ◽  
Particle Sizes ◽  
Mutual Relationship ◽  
Velocity Of Detonation ◽  
Plastic Explosives ◽  
Detonation Characteristics

cis-1,3,4,6-Tetranitrooctahydroimidazo-[4,5 d]imidazole (BCHMX) has been studied as explosive filler to replace pentaerythritol tetra-nitrate (PETN) inEPX1 explosive. BCHMX with different particle sizes was bonded by thermoplastic binder plasticised by dibutyl phthalate to obtain BCHMX-EPX. Heat of combustion was measured. Impact energy and friction force of initiation were determined. Velocity of detonation was measured, while the detonation characteristics were calculated by thermodynamic code named EXPLO 5. For comparison, the detonation characteristics of some commercial plastic explosives such asEPX-1, SEMTEX 10 and FORMEX P1were also studied. It was concluded that BCHMX-EPX has the highest detonation characteristics of all the studied plastic explosives and its sensitivity is in the same level of the studied traditional plastic explosives. BCHMX-EPX has the highest decomposition temperature of all the studied samples. The mutual relationship obtained from the experimental and calculated results indicates the compatibility of the calculated results with the experimental measurements.

scholarly journals Characteristics of a New Plastic Explosive Named EPX-1

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Ahmed Elbeih
Keyword(s):  
Detonation Velocity ◽  
Dibutyl Phthalate ◽  
Production Method ◽  
Pentaerythritol Tetranitrate ◽  
Vacuum Stability ◽  
Plastic Explosive ◽  
Plastic Explosives ◽  
Vacuum Stability Test ◽  
Research Stage ◽  
Detonation Characteristics

EPX-1 is a new plastic explosive (in the research stage) which has been prepared for military and civilian applications. EPX-1 explosive contains pentaerythritol tetranitrate (PETN) with different particle size as explosive filler bonded by nonenergetic thermoplastic binder plasticized by dibutyl phthalate (DBP). In this paper, the production method of EPX-1 was described. The crystal morphology was studied by scanning electron microscope (SEM). Heat of combustion was determined experimentally. The compatibility of PETN with the polymeric matrix was studied by vacuum stability test. Sensitivities to impact and friction were measured. The detonation velocity was measured experimentally and the detonation characteristics were calculated by EXPLO5 thermodynamic code. For comparison, Semtex 1A, Semtex 10, Formex P1, and Sprängdeg m/46 were studied. It was concluded that PEX-1 has compatible ingredients, it has the highest detonation velocity of all the studied plastic explosives, and its sensitivity is in the same level of the studied plastic explosives except Semtex 1A.

Detonation Characteristics of Plastic Explosives Based on Attractive Nitramines with Polyisobutylene and Poly(methyl methacrylate) Binders

2012 ◽  
Vol 30 (4) ◽  
pp. 358-371 ◽  
Author(s):  
Ahmed Elbeih ◽  
Jiri Pachman ◽  
Svatopluk Zeman ◽  
Pavel Vávra ◽  
Waldemar A. Trzciński ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Plastic Explosives ◽  
Detonation Characteristics

Forensic applications of IR infrared microscopic internal reflection spectroscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1528-1529
Author(s):  
Edward G. Bartick ◽  
John A. Reffner
Keyword(s):  
Specular Reflection ◽  
Forensic Analysis ◽  
Attenuated Total Reflection ◽  
Internal Reflection ◽  
Standard Size ◽  
Ir Microscopy ◽  
Ir Analysis ◽  
Plastic Explosives ◽  
Internal Reflection Spectroscopy ◽  
Reflectance Measurements

Since the introduction of commercial Fourier transform infrared (FTIR) microscopic systems in 1983, IR microscopy has developed as an important analytical tool in research, industry and forensic analysis. Because of the frequent encounter of small quantities of physical evidence found at crime scenes, spectroscopic IR microscopes have proven particularly valuable for forensic applications. Transmittance and reflectance measurements have proven very useful. Reflection-absorption, specular reflection, and diffuse reflection have all been applied. However, it has been only very recently that an internal reflection (IRS) objective has been commercially introduced.The IRS method, also known as attenuated total reflection (ATR), has proven very useful for IR analysis of standard size samples. The method has been applied to adhesive tapes, plastic explosives, and general applications in the analysis of opaque materials found as evidence. The small quantities or uncontaminated areas of specimens frequently found requiring forensic analysis will often be directly applicable to microscopic IRS analysis.

Methane–oxygen detonation characteristics at elevated pre-detonation pressures

2020 ◽  
Author(s):  
S. Alexander Schumaker ◽  
Andrew M. Knisely ◽  
John L. Hoke ◽  
Keith D. Rein
Keyword(s):  
Detonation Characteristics

Analysis of Center Detonation Characteristics of Water Mist

2014 ◽  
Vol 602-605 ◽  
pp. 3434-3437
Author(s):  
Yu Kun Chen ◽  
Ke Yin Wang ◽  
Hai Ying Huang ◽  
Pai Hang Zhao
Keyword(s):  
Theoretical Model ◽  
Theoretical Calculation ◽  
Water Mist ◽  
Correction Factors ◽  
Simulation Results ◽  
New Formula ◽  
Detonation Characteristics

This paper analyzed the formula for calculating the velocity and scatter radius of water mist droplets after detonation. Through establishing model, calculating by the formula and simulation of theoretical model, the reasons of deviation between calculation and simulation results were found out. In order to make theoretical calculation more accurate and applicable, new formula was created by introducing correction factors.

Detonation characteristics of emulsion explosives sensitized by MgH2

2013 ◽  
Vol 49 (5) ◽  
pp. 614-619 ◽  
Author(s):  
Ya. F. Cheng ◽  
H. H. Ma ◽  
Zh. W. Shen
Keyword(s):  
Emulsion Explosives ◽  
Detonation Characteristics
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