Accession Number : AD0835498

Title :   EXPONENTIALLY DECAYING PRESSURE PULSE MOVING WITH CONSTANT VELOCITY ON THE SURFACE OF A LAYERED ELASTIC MATERIAL (SUPERSEISMIC LAYER--SUBSEISMIC HALF-SPACE).

Descriptive Note : Technical rept. for Jan-Oct 67,

Corporate Author : WEIDLINGER ASSOCIATES NEW YORK

Personal Author(s) : Wright, Joseph P. ; Baron, Melvin L.

Report Date : JUN 1968

Pagination or Media Count : 47

Abstract : The response of a layered elastic half-space to a progressing exponentially decaying normal surface pressure is evaluated for a case in which the constant velocity V of the moving pressure is greater than that of the P and S waves, respectively, in the upper layer (superseismic) and smaller than these wave speeds in the underlying half-space (subseismic). It is assumed that a steady-state exists with respect to coordinate axis attached to the moving load. The superseismic-subseismic geometry results in a stress field that extends over the entire plane, with sharp shocks possible only in that portion of the layer that lies behind the front of the progressing normal loading. A computer program for evaluating stresses and velocities at points in the medium is available and results are presented for a typical configuration of interest. (Author)

Descriptors :   *SHOCK WAVES), (*NUCLEAR EXPLOSIONS, AIRBURST, PRESSURE, STRESSES, WAVE PROPAGATION, INTEGRAL TRANSFORMS, PROPAGATION.

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE