A COMPUTER PROGRAM FOR THE DYNAMIC STRESS ANALYSIS OF UNDERGROUND STRUCTURES,

Abstract

The finite element method coupled with a stable step-by-step integration procedure is used to evaluate the dynamic response of linearly elastic two-dimensional stress structures. Linear strain quadrilateral elements and one-dimensional elements are combined to represent complex structural systems of arbitrary geometry. The computer program included in this report is suitable for the earthquake or blast analysis of underground structures. Arbitrary time-dependent displacements or loads may be specified at any point in the system. The method is applied to the blast analysis of a cylinder buried underground and the results are compared to an experimental study. The use of the program and a listing of the FORTRAN IV program for the CDC 6400 are given in the Appendices. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1968
Accession Number
AD0832681

Entities

People

  • Edward L. Wilson

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Displacement
  • Dynamic Response
  • Earthquakes
  • Finite Element Analysis
  • Geometry
  • Mathematics
  • Stress Analysis
  • Stresses
  • Topology
  • Two Dimensional
  • Underground Structures

Fields of Study

  • Engineering

Readers

  • Computer Science.
  • Structural Dynamics.