Ground Response in Alluvial Basins Due to Seismic Disturbances.

Abstract

This report summarizes the scientific accomplishments of this contract. These include: (1) Five preliminary basin models for SH-waves and three for elastic (P and SV) waves were studied using the finite element method. The results of these problems are presented either by synthetic seismograms or by snapshots; (2) Modification and improvement of the two dimensional finite element computer codes with particular attention being paid to save computer in-core storage and computing time; (3) Development of a new finite element technique to simulate different types of seismic sources. An example of demonstrating the difference in waveforms due to different types of source is appended; (4) A detailed description and user's guide for the two-dimensional elastodynamic finite element computer program developed at Aldridge and adapted to the VAX 11 computer at AFGL is provided. Keywords: Geologic models; Basins(Geographic); Finite element modeling; Wave propagation; Seismic source simulation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1985
Accession Number
ADA162467

Entities

People

  • John T. Kuo
  • Yu-chiung Teng

Organizations

  • Columbia University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Cartesian Coordinates
  • Computational Fluid Dynamics
  • Computer Programs
  • Computers
  • Core Storage
  • Directional
  • Elastic Waves
  • Finite Element Analysis
  • Grids
  • Materials
  • Numerical Analysis
  • Plastic Explosives
  • Two Dimensional
  • Wave Propagation
  • Waveforms
  • Waves

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Seismology
  • Technical Research and Report Writing.