Theoretical Investigation of A Converging Shock Wave in Porous or Composite Materials

Abstract

The propagation of a converging shock wave in porous solids or mechanical mixtures is studied by means of the hydrodynamic equations with the model constitutive relations. Numerical calculations are made on the concentric layers composed of iron (inner layer) and of a porous or of a composite material (outer layer), and the effects of porosity or mixing ratio on the attained states are investigated. The results show that the pressure profile is not very sensitive to the porosity or the mixing ratio, while the temperature increases appreciably with the porosity.