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Effects Of Temperature Humidity Sample Geometry And Other Variables On Bruceton Type 12 Impact Initiation Of Hmx Based High Explosives
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Book Synopsis Effects of Temperature, Humidity, Sample Geometry, and Other Variables on Bruceton Type 12 Impact Initiation of HMX-based High Explosives by :
Download or read book Effects of Temperature, Humidity, Sample Geometry, and Other Variables on Bruceton Type 12 Impact Initiation of HMX-based High Explosives written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The drop weight impact test, developed at Bruceton Naval Research Laboratory 60 years ago, is still the most commonly used configuration for evaluating sensitivity of explosives to non-shock ignition. The standard drop weight impact test is performed under ambient conditions for temperature and humidity - variations in which are known to significantly affect the probability of reaction. We have performed a series of impact tests in an attempt to characterize the effect of temperature, humidity, sample geometry (height, mass, L/d, and pressed density), sample confinement, and impact surface properties (strength and coefficient of friction) on the probability of reaction in a drop weight impact test. Differences in the probability of reaction have been determined across a range of drop heights for each configuration. The results clearly show significant shifts in the probability of reaction and in the slope of the reaction probability curve for several of the variables.
Book Synopsis Influence of Atmospheric Moisture on Ignition of Firedamp by Explosives by : R. L. Grant
Download or read book Influence of Atmospheric Moisture on Ignition of Firedamp by Explosives written by R. L. Grant and published by . This book was released on 1956 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Damage on Non-shock Initiation of HMX-based Explosives by :
Download or read book Effects of Damage on Non-shock Initiation of HMX-based Explosives written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural damage in energetic materials plays a significant role in the probability of nonshock initiation events. Damage may occur in the form of voids or cracks either within crystals or in binder-rich regions between crystals. These cracks affect whether hotspots generated by impact will quench or propagate under non-shock insult. For this study, we have separately engineered intracrystalline and inter-crystalline cracks in to the HMX-based PBX 9501. Intra-crystalline cracks were created by subjecting HMX to forward and reverse solid-to-solid phase transformations prior to formulation. Inter-crystalline cracks were induced by compressing formulated samples of PBX 9501 at an average strain rate of 0.00285 S−1. Both sets of pre-damaged explosives were then impact tested using the LANL Type 12 Drop Weight-Impact Machine and their sensitivities compared to nondamaged PBX 9501. Results of these tests clearly show significant differences in sensitivity between damaged and non-damaged PBX 9501.
Book Synopsis Temperature-dependent Shock Initiation of TATB-based High Explosives by :
Download or read book Temperature-dependent Shock Initiation of TATB-based High Explosives written by and published by . This book was released on 1993 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of temperature on the shock sensitivity of two TATB formulations PBX 9502 and LX-17 are studied over the temperature range -54°C to 252°C. The shock Hugoniot curves over this same temperature range are developed. Thermal expansion properties and porosities are used to help determine the mechanisms of thermal sensitization. Impact sensitivities over the range from ambient to 300°C are reported. Analyses of these results imply that thermal sensitization is the result of purely chemical kinetics enhancement and intracrystalline hot-spot growth. Additional results on the ambient shock sensitivity of PBX 9502 and LX-17 following thermal cycling to 252°C and back to ambient is presented.
Book Synopsis Deflagration Behavior of HMX-Based Explosives at High Temperatures and Pressures by : J. F. Wardell
Download or read book Deflagration Behavior of HMX-Based Explosives at High Temperatures and Pressures written by J. F. Wardell and published by . This book was released on 2003 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the deflagration behavior of several HMX-based explosives at pressure from 10-600 MPa and temperatures from 20-180 C. We have made laminar burn rate measurements with the LLNL High Pressure Strand Burner, in which burn wires are used to record the time-of-arrival of the burn front in the cylindrical sample as a function of pressure. The explosive samples are 6.4 mm in diameter and 63 mm long, with ten burn wires embedded at different positions in the sample. Burning on the cylindrical surface is inhibited with an epoxy layer. With this direct measurement we do not have to account for product gas equation of state or heat losses in the system, and the burn wires allow detection of irregular burning. We find that formulation details are very important to overall deflagration behavior - the presence of 10% or less by weight of binder leads to physical deconsolidation and rapid deflagration at high pressures, and a larger particle size distribution leads to slower deflagration. High temperatures have a relatively minor effect on the deflagration rate until the beta-to-delta phase transition temperature is reached, beyond which the deflagration rate increases approximately 40-fold.
Book Synopsis Explosive Effects and Applications by : Jonas A. Zukas
Download or read book Explosive Effects and Applications written by Jonas A. Zukas and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a broad-based text on the fundamentals of explosive behavior and the application of explosives in civil engineering, industrial processes, aerospace applications, and military uses.
Book Synopsis High Energy Materials by : Jai Prakash Agrawal
Download or read book High Energy Materials written by Jai Prakash Agrawal and published by John Wiley & Sons. This book was released on 2015-11-20 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by an insider with over 40 years of high energy materials (HEMs) experience in academia, industry and defense organizations, this handbook and ready reference covers all important HEMs from the 1950s to the present with their respective properties and intended purposes. Written at an attainable level for professionals, engineers and technicians alike, the book provides a comprehensive view of the current status and suggests further directions for research and development. An introductory chapter on the chemical and thermodynamic basics allows the reader to become acquainted with the fundamental features of explosives, before moving on to the important safety aspects in processing, handling, transportation and storage of high energy materials. With its collation of results and formulation strategies hitherto scattered in the literature, this should be on the shelf of every HEM researcher and developer.
Book Synopsis Ordnance Engineering Design Handbook by :
Download or read book Ordnance Engineering Design Handbook written by and published by . This book was released on 1968 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis First NASA Aerospace Pyrotechnic Systems Workshop by :
Download or read book First NASA Aerospace Pyrotechnic Systems Workshop written by and published by . This book was released on 1993 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emerging Energetic Materials: Synthesis, Physicochemical, and Detonation Properties by : Dabir S. Viswanath
Download or read book Emerging Energetic Materials: Synthesis, Physicochemical, and Detonation Properties written by Dabir S. Viswanath and published by Springer. This book was released on 2018-01-02 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes science and technology of a new generation of high-energy andinsensitive explosives. The objective is to provide professionals with comprehensiveinformation on the synthesis and the physicochemical and detonation properties ofthe explosives. Potential technologies applicable for treatment of contaminated wastestreams from manufacturing facilities and environmental matrices are also be included.This book provides the reader an insight into the depth and breadth of theoreticaland empirical models and experimental techniques currently being developed in thefield of energetic materials. It presents the latest research by DoD engineers andscientists, and some of DoD’s academic and industrial researcher partners. The topicsexplored and the simulations developed or modified for the purposes of energetics mayfind application in other closely related fields, such as the pharmaceutical industry.One of the key features of the book is the treatment of wastewaters generated duringmanufacturing of these energetic materials.
Book Synopsis Innovative Energetic Materials: Properties, Combustion Performance and Application by : WeiQiang Pang
Download or read book Innovative Energetic Materials: Properties, Combustion Performance and Application written by WeiQiang Pang and published by Springer Nature. This book was released on 2020-07-04 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the combustion performance and application of innovative energetic materials for solid and hybrid space rocket propulsion. It provides a comprehensive overview of advanced technologies in the field of innovative energetic materials and combustion performance, introduces methods of modeling and diagnosing the aggregation/agglomeration of active energetic metal materials in solid propellants, and investigates the potential applications of innovative energetic materials in solid and hybrid propulsion. In addition, it also provides step-by-step solutions for sample problems to help readers gain a good understanding of combustion performance and potential applications of innovative energetic materials in space propulsion. This book serves as an excellent resource for researchers and engineers in the field of propellants, explosives, and pyrotechnics.
Book Synopsis Detection of Liquid Explosives and Flammable Agents in Connection with Terrorism by : Hiltmar Schubert
Download or read book Detection of Liquid Explosives and Flammable Agents in Connection with Terrorism written by Hiltmar Schubert and published by Springer Science & Business Media. This book was released on 2008-05-21 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organization of an Advanced Research Workshop with the title “Detection and Disposal of Liquid Explosives and Flammable Agents in Connection with Terrorism” was motivated by international findings about activities in this field of application. This ARW followed a meeting about the “Detection of Disposal Improvised Explosives” (St. Petersburg, 2005). Both items show the logistic problems as one of the lessons, terrorists have to overcome. These problems are connected with the illegal supply and transport of explosives and fuels and as counter-measure the detection of these materials. The invention of liquid explosives goes back to the middle of the 19th century and was used for special purposes in the commercial field of application. Because of the high sensitivity of liquid explosives against mechanical shock, caused by adiabatic compression of air-bobbles producing “hot spots” as origin of initiation the commercial application was not very successful. Because of this high risk, liquid explosives are not used in military or commercial application with some exceptions. In the commercial field explosives as slurries or emulsions consisting of suitable salts (Ammoniumnitrate etc.) and water are used to a large extend because of their high insensitivity. In many cases these slurries or emulsions were unfit for terrorist actions, because of their low sensitivity, large critical diameter and using in confinement. In the military field liquid explosives are used in World War I and II as bomb-fillings.
Book Synopsis Handbook of Pyrotechnics by : Karl O. Brauer
Download or read book Handbook of Pyrotechnics written by Karl O. Brauer and published by Chemical Publishing Company. This book was released on 1974-07-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides extremely useful data and information about theory and industrial applications that formerly were limited to applications in military ordnance, fireworks, and rock blasting. These "civilian" applications include spacecraft, aircraft, underwater vehicle systems, metal forming, cladding, riveting and some other production methods. Also pairs well with: Fireworks, Principles and Practice, 4th Edition, ISBN: 0820604070; Military and Civilian Pyrotechnics, ISBN: 0820603643; Pyrotechnics, ISBN: 0820601128. Visit us at www.chemical-publishing.com
Book Synopsis Solid Rocket Propulsion Technology by : A. Davenas
Download or read book Solid Rocket Propulsion Technology written by A. Davenas and published by Newnes. This book was released on 2012-12-02 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, a translation of the French title Technologie des Propergols Solides, offers otherwise unavailable information on the subject of solid propellants and their use in rocket propulsion. The fundamentals of rocket propulsion are developed in chapter one and detailed descriptions of concepts are covered in the following chapters. Specific design methods and the theoretical physics underlying them are presented, and finally the industrial production of the propellant itself is explained. The material used in the book has been collected from different countries, as the development of this field has occurred separately due to the classified nature of the subject. Thus the reader not only has an overall picture of solid rocket propulsion technology but a comprehensive view of its different developmental permutations worldwide.
Book Synopsis Second NASA Aerospace Pyrotechnic Systems Workshop by :
Download or read book Second NASA Aerospace Pyrotechnic Systems Workshop written by and published by . This book was released on 1994 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosives written by Josef Köhler and published by Wiley-VCH. This book was released on 1992-11-27 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This highly acclaimed reference work has set worldwide standards in the field of explosives and propellant materials for the past 60 years. Now in its 4th revised English Edition it describes 120 explosive substances with their formulae, performance, sensitivity characteristics and trade names. Instructions and tables for the calculation of thermodynamic data are also included. A special feature is the short dictionary of explosive characteristics in six languages: English, German, French, Spanish, Russian and Czechoslovakian. From reviews on the 3rd English Edition: 'This wealth of information and an index that comprises some 2500 key-words and several conversion tables make this book a unique source of knowledge for anybody working with explosives.' Propellants, Explosives, Pyrotechnics. 'The objective of the book is to provide fundamental information on the subject of explosives not only to experts but also to the general public. The book will therefore, apart from industrial companies and research facilities concerned, be found useful in documentary centers, translation bureaus, editorial offices, patent and lawyer offices, and other institutions of this nature.' Mining Engineering
Book Synopsis The ELSI Handbook of Nanotechnology by : Chaudhery Mustansar Hussain
Download or read book The ELSI Handbook of Nanotechnology written by Chaudhery Mustansar Hussain and published by John Wiley & Sons. This book was released on 2020-03-31 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook focuses on the recent advancements in Safety, Risk, Ethical Society and Legal Implications (ESLI) as well as its commercialization of nanotechnology, such as manufacturing. Nano is moving out of its relaxation phase of scientific route, and as new products go to market, organizations all over the world, as well as the general public, are discussing the environmental and health issues associated with nanotechnology. Nongovernmental science organizations have long since reacted; however, now the social sciences have begun to study the cultural portent of nanotechnology. Societal concerns and their newly constructed concepts, show nanoscience interconnected with the economy, ecology, health, and governance. This handbook addresses these new challenges and is divided into 7 sections: Nanomaterials and the Environment; Life Cycle Environmental Implications of Nanomanufacturing; Bioavailability and Toxicity of Manufactured Nanoparticles in Terrestrial Environments; Occupational Health Hazards of Nanoparticles; Ethical Issues in Nanotechnology; Commercialization of Nanotechnology; Legalization of Nanotechnology.
