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

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)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1966
Accession Number
AD0638009

Entities

People

  • Ibrahim A. Ebeido
  • Milton S. Hess
  • Robert D. Stoll

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Compression
  • Dynamic Response
  • Mathematical Models
  • Models
  • Stress Waves
  • Stresses
  • Symmetry
  • Unloading
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Structural Dynamics.