Detonation phenomena

W. C. Davis, "Detonation Phenomena," ia / 2th A.nnual Symposium on Behaniour and Efiliation of Explosives in Engineering Design, University of New Mexico, Albuquerque, 1972. 

Scientific studies of detonation phenomena date back to the end of the nineteenth century and persist as an active field of investigation. A wealth of literature has developed over this period consequently, no detailed reference list will be presented. For details and extensive references the reader should refer to books on detonation phenomena [4], Williams book on combustion [5], and the review by Lee [6],... 

F. THE STRUCTURE OF THE CELLULAR DETONATION FRONT AND OTHER DETONATION PHENOMENA PARAMETERS... 

In contrast to the detonation of gaseous materials, the detonation process of explosives composed of energetic solid materials involves phase changes from solid to liquid and to gas, which encompass thermal decomposition and diffusional processes of the oxidizer and fuel components in the gas phase. Thus, the precise details of a detonation process depend on the physicochemical properties of the explosive, such as its chemical structure and the particle sizes of the oxidizer and fuel components. The detonation phenomena are not thermal equilibrium processes and the thickness of the reachon zone of the detonation wave of an explosive is too thin to identify its detailed structure.[i- i Therefore, the detonation processes of explosives are characterized through the details of gas-phase detonation phenomena. 

Dunkle s Syllabus (1957 1958) C.G. Dunkle, "Detonation Phenomena , Picatinny Arsenal-Stevens Graduate School Program, 26 Syllabi (1957-1958) (Available from Defense Documentation Center Cameron Station, Alexandria, Va as AD No 29041 (18 Jan 1962), PA Library Accession No U48378... 

Cameras, High Speed Photographic for Investigating Detonation Phenomena. See "CAMERAS in Vol 2 of Encycl, pp CI3-L. to C19-R and the following ... 

Smear (Streak or Sweeping Image) Camera, used for studies of deton phenomena is described in Vol 2, p 06 under CAMERAS... 

Detonation (and Explosion), Microwave Technique for Studying Detonation Phenomena. See Refs 36 71 under Detonation (and Explosion), Experimental Procedures... 

Dunkle s Syllabus (1957 58), 1-36 (Detonation phenomena, mathematical background) 37-60 (Initiation of shock waves formulas equations including Riemann equation, p 43 Hugoniot relations in gases, p 44 Rankine-Hugoniot equation, p 45 ... 

Transient detonation phenomena are numerous and varied. Jones Mitchell (Ref 21a) observed such deton in low density... 

The authors have felt in their own activity a need for a systematic survey of current experimental facts and data of real explosives as a complement to existing theoretical treatments of idealized explosives and detonation phenomena. The theoretical treatment has therefore been deliberately limited and is included mainly with the purpose of simplifying the account of experimental results... 

Because initiation is such a fundamental part of explosion and detonation phenomena various aspects of initiation have already been described in previous volumes and in this volume of the Encyclopedia. Particularly pertinent are the articles on Deflagration, Vol 3, pp D38-40 Detonation (and Explosion), Initiation and Propagation, Vol 4, pp D402-419 ... 

For overall Arrhenius parameters (based on measurements of the overall rate constant as a function of temp), there are no normal values if the reaction involves several elementary steps of comparable rates. Indiscriminate use of such parameters in assessing detonation phenomena (eg, hot spots) can lead to gross errors. The reader is reminded that much of the existing kinetic data for explosives are based on the measurement of the overall pressure changes in the system under study. Unless the detailed reaction sequence, usually called the reaction mechanism, is known, Arrhenius parameters based on pressure change measurement can be most unreliable... 

Detonation Phenomena in Liquid Explosives. Detonation parameters of LE are similar to those of solid expls of comparable density and energy content. This is shown in Table 1 which is to be comapred with Table 3-5 of Ref 29... 

Above we have stressed that detonation parameters of LE and solid explosives are comparable. Nevertheless, LE often exhibit detonation phenomena that resemble gaseous detonations more than detonations of solid expls. 

Dunkle, Syllabus, "Detonation Phenomena , Picatinny Arsenal-Stevens Graduate School Program, Issue 1958, pp 325—28 (Explosion of Shells and Bombs)... 

C.G. Dunkle, Detonation Phenomena", Picatinny Arsenal-Stevens Graduate School Program, Twenty-six Syllabi (1957-1958), Metallized Explosives, p 274... 

H. Selle, Deflagrations-und Detonations erscheinungen beim Zerfall von Methyl-nitrit (Deflagration and detonation phenomena during the decomposition of methyl nitrite), pp 672—78... 

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