Accession Number : AD0638009

Title :   INVESTIGATIONS OF THE QUASI-STATIC AND DYNAMIC RESPONSE OF GRANULAR SOILS.

Descriptive Note : Technical rept., Oct 64-Mar 66 (final).

Corporate Author : COLUMBIA UNIV NEW YORK DEPT OF CIVIL ENGINEERING AND ENGINEERING MECHANICS

Personal Author(s) : Stoll,Robert D. ; Ebeido,Ibrahim A. ; Hess,Milton S.

Report Date : MAR 1966

Pagination or Media Count : 85

Abstract : The report describes experimental studies of shock-induced sustained-amplitude stress waves in soil. A general analysis is made of wave propagation in a cylindrical bar. The mathematical model includes stress relaxation and radial inertia factors. Also included is analytical interpretation of unloading wave propagation. Unloading waves were generated experimentally by suddenly unloading a previously loaded cylindrical specimen. The analysis results in a theory which accounts for longitudinal, axial, and radial shear modes. Preliminary results are presented of experiments involving earth shock with spherical symmetry. Quasi-static isotropic compression tests and their associated problems are discussed. (Author)

Descriptors :   (*SOILS, STRESSES), SHOCK WAVES, MATHEMATICAL MODELS, PROPAGATION, SHEAR STRESSES, COMPRESSIVE PROPERTIES, STATICS, DYNAMICS, NUMERICAL ANALYSIS, LOADS(FORCES)

Subject Categories : Soil Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE