Elastic-plastic shock wave profiles in oriented single crystals of cyclotrimethylene trinitramine (RDX) at 2.25GPa

2006 ◽  
Vol 100 (2) ◽  
pp. 024908 ◽  
Author(s):  
Daniel E. Hooks ◽  
Kyle J. Ramos ◽  
A. Richard Martinez
Author(s):  
M.A. Mogilevsky ◽  
L.S. Bushnev

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.


2002 ◽  
Vol 82 (12) ◽  
pp. 2419-2440
Author(s):  
S. Golyandin ◽  
S. Kustov ◽  
S. Nikanorov ◽  
K. Sapozhnikov ◽  
A. Sinani ◽  
...  

2000 ◽  
Vol 62 (5) ◽  
pp. 6648-6666 ◽  
Author(s):  
F. J. Uribe ◽  
R. M. Velasco ◽  
L. S. García-Colín ◽  
E. Díaz-Herrera
Keyword(s):  

1977 ◽  
Vol 20 (5) ◽  
pp. 673-675
Author(s):  
A. K. Nikiforov ◽  
G. A. Adadurov ◽  
A. A. Kuznetsov ◽  
D. D. Mishin

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