A. P. Kiselev, V. O. Yarovoy, E. A. Vsemirnova, “Polarization anomalies of elastic waves. Caustic and penumbra”, Zap. Nauchn. Sem. POMI, 2003, Volume 297,Pages <nobr>136

This article is cited in 2 papers

Polarization anomalies of elastic waves. Caustic and penumbra

A. P. Kiselev^a, V. O. Yarovoy^b, E. A. Vsemirnova^c

^a St. Petersburg Department of V. A. Steklov Institute of Mathematics, Russian Academy of Sciences
^b Institute of Problems of Mechanical Engineering, Russian Academy of Sciences
^c Saint-Petersburg State University of Aerospace Instrumentation

Abstract: Theoretical study of polarization-spectral anomalies of a wave field (that is its deviation from that predicted by simple plane-wave models) is presented. A simple method of numerical simulation of anomalies of nonstationary wave fields near a caustic and in penumbra is described. It uses both leading and correcting terms in asymptotic formulas. Examples of simulation of displacements and average polarization ellipses are given. A discussion of quantitative properties of wave fields presented.

UDC: 550.3+534.2+517.9+539.3

Received: 10.03.2003