Accession Number : AD0764140

Title :   Interactions of Stress Waves with Cracks and Openings in Rock Media.

Descriptive Note : Final rept. Feb 72-May 73,

Corporate Author : SHOCK HYDRODYNAMICS SHERMAN OAKS CALIF

Personal Author(s) : Blatz,Paul J. ; Ialongo,Gilberto

Report Date : 10 MAY 1973

Pagination or Media Count : 77

Abstract : The program is generally concerned with an understanding of how strong stress waves interact with discrete faults, randomly distributed faults, and tunnels in rock media. The study comprises both theoretical analyses and two-dimensional computer calculations of selected interaction problems. The current work includes: quantitative understanding of the detailed mechanisms involved when strong stress waves interact with explicitly-defined crack surfaces and tunnels in rock media. Of particular interest are cracks which are obliquely oriented relative to the wave front; and the propagation of stress waves in randomly faulted media.

Descriptors :   (*JOINTS, *EXPLOSION EFFECTS), (*UNDERGROUND EXPLOSIONS, EXPLOSION EFFECTS), SHEAR STRESSES, NUMERICAL ANALYSIS, FAILURE(MECHANICS), FRACTURE(MECHANICS), DEFORMATION, SHOCK WAVES, UNDERGROUND STRUCTURES, ROCK, DIFFRACTION, MECHANICAL WAVES, CRACK PROPAGATION

Subject Categories : Geology, Geochemistry and Mineralogy
      Explosions

Distribution Statement : APPROVED FOR PUBLIC RELEASE