Accession Number : AD0854509

Title :   One-Dimensional Wave Propagation Through Cracked Rock; A Description of the CRAC-1 Program and Problem Solutions.

Descriptive Note : Technical rept. May 67-Sep 68,

Corporate Author : NEW MEXICO UNIV ALBUQUERQUE ERIC H WANG CIVIL ENGINEERING RESEARCH FACILITY

Personal Author(s) : Abbott, Phillip A. ; Davis, R. O., Jr

Report Date : MAY 1969

Pagination or Media Count : 92

Abstract : The report describes a computer program which solves the problem of a dilatational wave propagating through cracked material. The cracks are transverse to the direction of propagation, and the material may be elastic or viscoelastic. The solutions to eight elastic and three viscoelastic problems are given. The work is considered to be a first step toward understanding the effects of joints on wave propagation through in situ rock and is directed toward the eventual prediction of free-field phenomena resulting from a nuclear detonation. (Author)

Descriptors :   (*UNDERGROUND STRUCTURES, NUCLEAR EXPLOSIONS), (*NUCLEAR EXPLOSIONS, ROCK), (*COMPUTER PROGRAMMING, MECHANICAL WAVES), (*ROCK, JOINTS), ELASTIC PROPERTIES, PROPAGATION, VISCOELASTICITY, FLOW CHARTING, STRESSES, DEFORMATION, FORCE(MECHANICS), INTERACTIONS, CRACK PROPAGATION, TENSILE PROPERTIES.

Subject Categories : Geology, Geochemistry and Mineralogy
      Armor
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE