Stability of strong shocks in metals

I. Rutkevich, E. Zaretsky, M. Mond

Research output: Contribution to journalConference articlepeer-review


The stability of strong shock waves in metals with respect to spontaneous emission of acoustic and entropy-vortex waves is investigated theoretically. The analysis employs the empirical Hugoniot adiabatic (HA) which is commonly represented as a straight line in the plane (U,D) where U is the particle velocity behind the shock and D is the shock velocity. The criterion for spontaneous emission depends on the sound velocity in a shock-compressed medium which is determined from the three-term equation of state. The latter takes into account contributions of atoms and electrons to the total pressure. The atomic Gruneisen parameter and the cold elastic pressure are calculated from a system of coupled differential equations which is based on the empirical HA and the Slater-Landau approach. It has been found that spontaneous emission may occur in metals with relatively low values of the Hugoniot adiabatic slope S=dD/dU such as molybdenum and tantalum.
Original languageEnglish GB
Pages (from-to)207-210
JournalAIP Conference Proceedings
StatePublished - 1 Jul 1998
Externally publishedYes


  • High-pressure and shock wave effects in solids and liquids
  • Acoustical properties of solids


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