Initiation of Explosives by Low Strength Shocks.
Final technical rept.,
CAMBRIDGE UNIV (ENGLAND) CAVENDISH LAB
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The report describes a study of initiation processes involving weak i.e. kbar strength shocks. It has been shown that when an explosive crystal fractures decomposition occurs a mass spectrometer is being used to determine whether the products produced are the same as in normal thermal decomposition. The impact behaviour of films of the secondary P.E.T.N., R.D.X. and T.N.T. has been investigated and it appears that plastic flow, melting and viscous heating occur in the final stages of the compression of P.E.T.N. and affect initiation. In the impact initiation of lead azide initiation is preceeded by phenomena such as crack growth, crystal fragmentation and high-speed jetting. Author
- Ammunition and Explosives