Results 221 to 230 of about 31,373 (265)

Mechanism of detonation in explosives

Geophysics, 1944
Abstract Results of photographic work on the detonation of high explosives are presented and discussed in their relationship to the hydrodynamic theory of detonation. The two most important properties of an explosive are its strength and its detonation velocity. Methods for determining these quantities are described.
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Ignition mechanisms of explosives during mechanical deformation

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1982
Abstract In earlier papers we have described the development of photographic and pressure-measuring techniques to study the detailed behaviour of thin layers of explosive when impacted. Ignition, when it occurs, invariably does so at local sites where ‘hot spots’ have been generated.
John Edwin Field, G. M. Swallowe, S. N. Heavens   +2 more
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Mechanics of deep underground explosions

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1964
Abstract Discussion of the effects of explosions in soils is complicated by many factors, foremost among which are the physical characteristics of natural soils. In this paper, certain aspects of the mechanics of deep underground chemical explosions are treated theoretically in terms of a model of the physical situation.
P. Chadwick, A. D. Cox, H. G. Hopkins
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Wave Forming Mechanisms in Explosive Welding

Materials Science Forum, 2004
Experimental results of wavy metal interfaces obtained by explosive welding are presented and used to determine which wave forming mechanism occurred. It was found that for small collision angles (smaller than about 20°) the Von Karman or jet indentation mechanism occurs, while for large collision angles a straight metal interface is obtained. However,
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Mechanical Properties of Confined Explosives

Journal of Energetic Materials, 2005
ABSTRACT The mechanical properties of composite explosives are being studied as a function of mechanical confinement. Although other techniques for confinement were used, most of the results presented here were obtained by the use of a constant confining pressure obtained by oil immersion.
Donald A. Wiegand, Brett Reddingius
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Mechanics of Explosive Welding

1983
The explosive welding process is one of the most useful and widely employed applications of the high energy rate methods to the fabrication of materials. Its major advantage lies in that it does not suffer from the limitations imposed on other welding processes by their specific characteristics.
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The nucleation mechanism of wire explosion

Journal of Physics D: Applied Physics, 2004
This study deals with the nucleation mechanism of electric explosion of wires allowing estimation of wire parameters at the start of the explosion for a wide range of experimental conditions. We analyse the dependence of the limit value of the energy deposited during the initial resistive phase of heating of the wire on the parameters of the wire and ...
S I Tkachenko, V S Vorob'ev, S P Malyshenko   +2 more
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The ignition mechanism of high explosives

Applied Scientific Research, 1956
A preliminary account of some theoretical and experimental results shows that an explosive becomes inflammable at compression if the air inclusions contain vapours or small particles or drops which, when heated, give an exothermic reaction. A similar effect is obtained if the explosive forms thin layers between two bubbles, or if the bubble wall is ...
C. H. Johansson, Henrik L. Selberg
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Mechanisms of Explosions

2023
Ryan M. Fillingham, Robert P. Dunsmore, David A. DeTata   +2 more
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Explosion mechanism in supernovae collapse

Space Science Reviews, 1995
The prevailing number of supernovae have come from the collapse of iron stellar cores. The 1D-hydrodynamic theory has failed, for more than 20 years of its development, to find an effective mechanism of the supernova explosion, despite the fact that it describes the characteristics neutrino pulse satisfactorily.
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