Journal of Engineering Physics and Thermophysics is a translation of Inzhenerno-fizicheskii Zhurnal,
a publication of the Academic Scientific Complex "A. V. Luikov Heat and Mass Transfer Institute"
of the National Academy of Sciences of Belarus
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CERTAIN ASPECTS OF SHOCK-WAVE MOTION OF A
MEDIUM CAUSED BY PHASE TRANSITIONS AND FAILURE

A. M. Petrenko and G. S. Romanov

UDC 534.222.2:539.2

The article presents the results of a numerical solution 
of the problem of explosion in silicate rock taking into account melting, 
polymorphic phase transition, and various kinds of brittle failure. 
We show that phase transition provides an effective increase in the 
stability of a medium to explosive effect, while cracking processes 
lead to the formation of a stable two-wave structure. A relationship 
between the destruction parameters and the structure of shock-wave 
elastic motion is established. We estimate the effect of phase transitions 
and failure on the spectrum of acoustic emission initiated by explosion.

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