PROPAGATION OF A COMPRESSIONAL PULSE IN A LAYERED SOLID.

Abstract

A solution is given for the problem of propagation of a compressional pulse in a solid half-space which is overlain by a solid layer of different properties. The point source is situated at the depth 1/2H, H denoting the thickness of the layer. Theoretical seismograms of the vertical displacement w at the surface are evaluated out to ranges r = 20H. The solution is obtained by the exact ray theory. The displacement due to the source was assumed to have a shape which at large distances reduces to a saw-tooth. The once-reflected waves from the interface, PP and PS, are strongly marked. The Rayleigh wave is already recognizable at r =5H, and is fully developed at r =20H. The method of ray theory is applied far into the region where the normal mode theory converges well. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 10, 1964
Accession Number
AD0608550

Entities

People

  • C. L. Pekeris
  • F. Abramovici
  • H. Jarosch
  • Z. Alterman

Organizations

  • Weizmann Institute of Science

Tags

DTIC Thesaurus Topics

  • Displacement
  • Piezoelectric Transducers
  • Rayleigh Waves
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Thickness
  • Transducers
  • Waves

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Seismology
  • Structural Dynamics.

Technology Areas

  • Space