Download or read book Initiation of Solid Explosives by Impact written by German Tikhonovich Afanasʹev and published by . This book was released on 1968 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initiation of Solid Explosives by Impact written by G. T. Afanas'ev and published by . This book was released on 1970 with total page 0 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 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 Initiation of Solid Explosives by Impact by G T Afanas ev and V K Bobolev 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 Initiation of Solid Explosives by Impact written by German Tikhonovich Afanasʹev and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Projectile Impact Initiation of Condensed Explosives written by Milton L. Weiss and published by . This book was released on 1967 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initiation of Solid Explosives by Impact G T Afanas ev and V K Bobolev Translated from Russian by I Shechtman written by German Tikhonovich Afanasʹev 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 Initiation of Solid Explosives by Impact written by German Tikhonovich Afanasʹev and published by . This book was released on 1971 with total page 128 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 A Frictional Work Predictive Method for the Initiation of Solid High Explosives from Low pressure Impacts written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of these tests was to provide information that would aid in the prediction of HE response in accident situations where the initiating stimulus was less than that required for direct shock initiation. Before these tests were run, a prediction of threshold impact velocity was made (70m/s) using a rough average of previously reported threshold factional work from skid tests (1 cal/cm2) and the experimental value for coefficient of friction of 0.5(") measured in the same tests for PBX-9404. The actual testing proved the threshold impact velocity to be much less, and the pretest prediction was not only wrong, it was not conservative. This work presents a methodology for more accurately predicting the reaction threshold for HE involved in an accident such as an airplane crash or a severe land transportation accident. The main focus of this work is on LX-10-1 (94.5% 5.5% Viton A binder, density 1.86g/cm3). Additional work was done on LX-17 (92.5% TATB, 7.5% KelF binder, density 1.90g/cm3), a very insensitive explosive. The explicit two-dimensional finite element code, DYNA2D, was used to model the tests and predict the HE response. The finite element mesh of the projectile and target were generated using MAZE. The post-processing of the DYNA2D analysis was done with ORION.

Download or read book The Initiation of Solid Explosives by Flame and Shock written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Level Modeling of the Mechanism of Shock Initiation of Solid Explosives written by F. J. Owens and published by . This book was released on 1980 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work represents an attempt to consider on a fundamental level how shock or impact can cause chemical reactions in certain solids in order to gain insight into the factors which determine sensitivity to explosion.

Download or read book An Extension of the Walker Wasley Criterion for the Initiation of Solid Explosives by Projectile Impact written by H. R. James and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of a Gas Explosion on Solid Explosives written by K. K. Andreev and published by . This book was released on 1969 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical considerations affecting the conditions under which a gas explosion might initiate a solid explosive are discussed and experiments are described. The conclusion is reached, theoretically and experimentally, that the initiation of a solid explosive by a gas explosion is possible but only when the gas is under sufficient pressure. In the experiments, a small (15-20 mg) crystal of lead azide was initiated electrically by a thin wire; it in turn ignited the explosive gas in a glass tube (25 mm in diameter, 1.5 m long). A small quantity of the explosive being tested in the form of a solidified or large crystal was placed on a strip of iron in the middle of the tube. (Blasting gelatine, pentaerythritol tetranitrate, and picric acid were tried.) Heating some of the explosives to 100 degrees was tried but no detonation occurred. With secondary explosives, the theoretical calculation used were confirmed by the experiment. (Author).

Download or read book Contribution to the Study of the Initiation of Detonation Produced by Impact on an Explosive written by Henri Bernier and published by . This book was released on 1966 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: The initiation of detonation by impact on an explosive is described and discussed in detail. The differences in behavior of homogeneous and heterogeneous explosives are delineated and discussed. A mathematical model is proposed which provides results agreeing with the results of an experimental study of the generation of detonation in a solid granular explosive. A critical examination of various theoretical studies of the initiation of detonation by shock wave is included.

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.