Electrical response of relaxing dielectrics compressed by shock waves: The axial‐mode problem

摘要

Axial‐mode conditions occur in studies of the dielectric properties of materials compressed by shock waves whenever the electrical vectors are perpendicular to a planar shock front. These conditions are readily obtained in shock experiments, and the analysis of the experiments is one dimensional. This work considers the electrical response of shock‐wave‐compressed dielectrics and piezoelectrics where changes in the polarization due to imposed electric fields do not occur instantaneously with field changes. Experiments are proposed in which the effective impedance shunting the specimen is either negligible or a series inductive‐resistive network. These latter experiments are useful in discriminating between dielectric relaxation and other relaxation phenomena. Several example problems are solved, and they suggest profitable areas of future work.