A THEORETICAL STUDY OF ELASTODYNAMIC RADIATION FIELDS FROM STRESS RELAXATION SOURCES.

Abstract

The report summarizes the work accomplished and the present status of investigations of stress wave radiation from earthquakes and explosions in prestressed media. Specifically we have treated the radiation from an explosion in a prestressed plate as a superposition of stress relaxation and shock wave conversion, using an equivalent source for the latter. The results of this theoretical work are obtainable in the form of a computer program which can be used to predict the radiation field. A summary of the results of the work accomplished indicate that a relaxation (or initial value) source model gives results which are in good agreement with observations from earthquakes and explosions in prestressed media. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 11, 1969
Accession Number
AD0687754

Entities

People

  • Charles B. Archambeau

Organizations

  • California Institute of Technology

Tags

DTIC Thesaurus Topics

  • Agreements
  • Computer Programs
  • Computers
  • Conversion
  • Earthquakes
  • Explosions
  • Observation
  • Radiation
  • Shock
  • Shock Waves
  • Stress Waves
  • Stresses
  • Waves

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Seismology
  • Systems Analysis and Design