Download or read book Initiation and Growth of Explosion in Liquids and Solids written by Frank Philip Bowden and published by CUP Archive. This book was released on 1985-10-24 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the research of Bowden, Yoffe and their collaborators on explosive initiation. What Bowden and Yoffe showed was that explosives are ignited almost invariably by thermal processes and though other processes have been identified their work still holds.
Download or read book Detonations of Solid Explosives written by Nathan E. Brener and published by . This book was released on 1987 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this project is to calculate the amount of shocking or jostling that a solid explosive can withstand before detonating. The ultimate objective is to determine, by means of the calculations, how to modify the explosive so that it still retains all of its explosive power but becomes less sensitive to shock. These less sensitive but equally powerful explosives would reduce the number of accidents that occur among personnel involved in handling, storing, transporting, and using the explosives. The detonation process is complicated and involves many factors, including hot spots, propagation of acoustic or detonation waves, interaction (or scattering) between detonation waves and explosive molecules, etc. However, the key factor in an explosive's sensitivity to shock is the activation energy of the molecules that make up the explosive. When an explosive receives a shock, the energy of the molecules contained in the explosive is increased. In the region of the shock, if the energy of a sufficient number of molecules is raised above the activation energy, then the detonation begins.
Download or read book Detonation of Condensed Explosives written by Roger Cheret and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work marks a stage in the evolution of a scientific and technical field which has been developed by the Commissariat a l'Energie Atomique (CEA) over several decades. Many members of the staff of the CEA have won re nown in this field, and their work has brought it to the high degree of excel lence for which it is internationally recognized today. These scientists had to consider every aspect of the field, as it concerned: modeling, which has recourse to fluid thermodynamics, molecular phys ics, and chemistry; numerical evaluation, which relies on mathematical analysis and data processing; and experiments in the firing area, which require specific stress generators and instrumentation. Whilst this book is a testament to the activity and success of staff of the CEA, it also reviews a number ofthe advances made in the discipline. How ever, it is not intended to be an exhaustive account of those advances; it is assumed that the reader can, if desired, consult the standard monographs, and more recent, more specialized works (notably W.C. Davis and W. Fickett, and C.L. Mader). The history of the discipline is interesting in itself, and also as an illustra tion of the causes which lead to progress in a coherent body of scientific work. I should like to make some comments on this progress, of which there is a fascinating summary in the introduction, and which will figure largely throughout the work.
Download or read book Toward Detonation Theory written by Anatoly N. Dremin and published by Springer Science & Business Media. This book was released on 1999-06-04 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is known that the Chapman-Jouguet theory of detonation is based on the assumption of an instantaneous and complete transformation of explosives into detonation products in the wave front. Therefore, one should not expect from the theory any interpretations of the detonation limits, such as shock initiation of det onation and kinetic instability and propagation (failure diameter). The Zeldovich-Von Neuman-Doring (ZND) theory of detonation appeared, in fact, as a response to the need for a theory capable of interpreting such limits, and the ZND detonation theory gave qualitative interpretations to the detonation limits. These interpretations were based essentially on the theoretical notion that the mechanism of explosives transformation at detonation is a combustion of a layer of finite thickness of shock-compressed explosive behind the wave shock front with the velocity of the front. However, some experimental findings turned out to be inconsistent with the the ory. A very small change of homogeneous (liquid) explosives detonation velocity with explosive charge diameter near the rather sizable failure diameter is one of the findings. The elucidation of the nature of this finding has led to the discovery of a new phenomenon. This phenomenon has come to be known as the breakdown (BD) of the explosive self-ignition behind the front of shock waves under the effect of rarefaction waves.
Download or read book The Detonation of Solid Explosives written by Chester Arthur Zimmerman and published by . This book was released on 1952 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1970 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shock Wave Science and Technology Reference Library Vol 5 written by Blaine Asay and published by Springer Science & Business Media. This book was released on 2009-12-16 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Los Alamos National Laboratory is an incredible place. It was conceived and born amidst the most desperate of circumstances. It attracted some of the most brilliant minds, the most innovative entrepreneurs, and the most c- ative tinkerers of that generation. Out of that milieu emerged physics and engineering that beforehand was either unimagined, or thought to be f- tasy. One of the ?elds essentially invented during those years was the science of precision high explosives. Before 1942, explosives were used in munitions and commercial pursuits that demanded proper chemistry and con?nement for the necessary e?ect, but little else. The needs and requirements of the Manhattan project were of a much more precise and speci?c nature. Spatial and temporal speci?cations were reduced from centimeters and milliseconds to micrometers and nanoseconds. New theory and computational tools were required along with a raft of new experimental techniques and novel ways of interpreting the results. Over the next 40 years, the emphasis was on higher energy in smaller packages, more precise initiation schemes, better and safer formulations, and greater accuracy in forecasting performance. Researchers from many institutions began working in the emerging and expanding ?eld. In the midst of all of the work and progress in precision initiation and scienti?c study, in the early 1960s, papers began to appear detailing the ?rst quantitative studies of the transition from de?agration to detonation (DDT), ?rst in cast, then in pressed explosives, and ?nally in propellants.
Download or read book Proceedings Fourth Symposium International on Detonation written by and published by . This book was released on 1967 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detonation Properties of Condensed Explosives Computed Using the Becker Kistiakowsky Wilson Equation of State written by Charles L. Mader and published by . This book was released on 1963 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initiation of Solid Explosives by Impact written by German Tikhonovich Afanasʹev and published by . This book was released on 1971 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Explosives and Related Items Detonation explosion and related subjects written by Basil Timothy Fedoroff and published by . This book was released on 1960 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Initiation of Solid Explosives by Impact written by German Tikhonovich Afanas'ev and published by . This book was released on 1971 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remarks on Certain Aspects of Solid Explosive Detonation Via Small Projectile Impact written by James P. Billingsley and published by . This book was released on 1989 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Criteria for high explosive detonation via projectile impact have important lethality, survivability and safety implications. Five sets of classic projectile impact induced detonation data were reexamined and reevaluated with respect to Moulard's critical area concept. Some empirical relations were found which are simple functions of the critical area or the projectile cross-section area and known impact shock variables. These relations enhance and/or supplement current empirical detonation prediction methodology, and could lead to a better understanding of the underlying physical phenomena. Furthermore, results from this investigation imply that a minimum (or critical) area dependent shock energy input rate (or power) is necessary for detonation initiation. This minimum amount of power must be sustained for a minimum length of time. This result for solid explosives in analogous to a power input criterion for gaseous explosive detonation which is well documented in the technical literature. It is empirically shown that the area dependent energy rate (power) is inversely proportional to the shock velocity in the explosive. For true one-dimensional situations, the area dependent power requirement is indistinguishable from the constant energy (per unit area) criteria. An important spinoff from this investigation is the formulation of a scheme to predict the minimum shock pressure required to detonate an explosive. This scheme is based on E.R. Fitzgerald's crystal lattice fracture/disintegration criteria. Some pertinent results are given in this report, but the concept and analysis are being documented in a separate publication. Author.
Download or read book The Science of High Explosives written by Melvin Alonzo Cook and published by . This book was released on 1958 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Phenomenon of Slow Detonation in Solid Explosives written by C. Leiber and published by . This book was released on 1985 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detonics of High Explosives written by Carl Hugo Johansson and published by . This book was released on 1970 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Explosives written by Jacqueline Akhavan and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Revised and expanded to reflect new developments in the field, this book outlines the basic principles required to understand the chemical processes of explosives. The Chemistry of Explosives provides an overview of the history of explosives, taking the reader to future developments. The text on the classification of explosive materials contains much data on the physical parameters of primary and secondary explosives. The explosive processes of deflagration and detonation, including the theory of 'hotspots' for the detonation process, are introduced and many examples are provided in the detailed description on the thermochemistry of explosives. New material includes coverage of the latest explosive compositions, such as high temperature explosives, nitrocubanes, energetic polymers, plasticizers and insensitive munitions (IM). This concise, readable book is ideal for 'A' level students and new graduates with no previous knowledge of explosive materials. With detailed information on a vast range of explosives in tabular form and an extensive bibliography, this book will also be useful to anyone needing succinct information on the subject."
