Accession Number : AD0872156

Title :   Dynamic One-Dimensional Continuum Model for Transversely Cracked Rock.

Descriptive Note : Technical rept. Oct 68-Sep 69,

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

Personal Author(s) : Abbott, Phillip A.

Report Date : JUN 1970

Pagination or Media Count : 78

Abstract : With the aid of a numerical program, many problems are solved in which dilatational waves are propagated through a regular plate-gap material. A regular plate-gap material is herein defined as one in which numerous identical plates are separated by equal-sized gaps before loading. Based on the macroscopic behavior observed in these problems, one-dimensional mathematical models for continuous materials which have essentially the same macroscopic response under the same impulsive loading are proposed. These material models are proposed to account for the effects on ground-motion calculations of jointing, faulting, or other unfilled discontinuities which are present in in situ rock but absent in laboratory material tests. (Author)

Descriptors :   (*NUCLEAR EXPLOSIONS, ROCK), (*ROCK, STRUCTURAL PROPERTIES), MATHEMATICAL MODELS, JOINTS, CRACK PROPAGATION, FAULTS(GEOLOGY), MOTION, RESPONSE.

Subject Categories : Geology, Geochemistry and Mineralogy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE