scholarly journals Modelling the Fluctuations of Reactive Shock Waves in Heterogeneous Solid Explosives as Stochastic Processes

2019 ◽  
Vol 45 (2) ◽  
pp. 295-315 ◽  
Author(s):  
David E. Kittell ◽  
Cole D. Yarrington ◽  
Jeremy B. Lechman ◽  
David L. Damm ◽  
Melvin R. Baer
Keyword(s):  
Shock Waves ◽  
Stochastic Processes ◽  
Solid Explosives ◽  
Heterogeneous Solid

The initiation of solid explosives by shock waves

1961 ◽  
Vol 8 (1) ◽  
pp. 842-847 ◽  
Author(s):  
C.H. Johansson ◽  
N. Lundborg ◽  
T. Sjölin
Keyword(s):  
Shock Waves ◽  
Solid Explosives

Investigation of shock-wave deformation history from recovered structure

1986 ◽  
Vol 44 ◽  
pp. 434-435
Author(s):  
M.A. Mogilevsky ◽  
L.S. Bushnev
Keyword(s):  
Shock Wave ◽  
Plastic Deformation ◽  
Dislocation Density ◽  
Shock Waves ◽  
Shock Front ◽  
Single Crystals ◽  
Residual Deformation ◽  
Deformation Structure ◽  
Deformation History ◽  
Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

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