Numerical Analysis of Converging Shock Waves in Concentric Solid Layer

抄録

A theoretical analysis is made for the behavior of converging shock waves in a concentric two layer system. Finite difference method is used to solve the hydrodynamic equations with numerically convenient constitutive equations proposed. The results show that differences in material properties have appreciable effects on the feature, and that in particular the system having an inner rod of higher shock impedance produces a negative pressure region near the central axis by a converging rarefaction wave.