Doubly-Asymptotic, Boundary-Element Analysis of Nonlinear Soil-Structure Interaction.

Abstract

This report describes a doubly-asymptotic (DA), boundary-element (BE) treatment of a surrounding nonlinear soil medium for dynamic soil-structure interaction analysis. Linear soil-structure interaction is reduced to a surface relationship that is asymptotically exact at both high and low frequencies. Nonlinear soil-structure interaction is treated similarly, except a volume contribution is added in the volume; a quasi-static and quasi-dynamic (axisymmetric) problem for which finite-element solutions have been obtained for comparison. For soil behavior based on J sub 2-plasticity theory, reasonable agreement is obtained. For soil behavior based on the Cap model, which is a combined I sub 1- and J sub 2-plasticity theory agreement is not obtained.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1979
Accession Number
ADA083330

Entities

People

  • P. G. Underwood
  • T. L. Geers

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Counter WMD
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Axisymmetric
  • Classification
  • Computational Science
  • Department Of Defense
  • Engineering
  • Equations
  • Finite Element Analysis
  • Frequency
  • Integral Equations
  • Plastic Explosives
  • Shear Modulus
  • Soil Structure Interactions
  • Symmetry
  • Three Dimensional
  • Two Dimensional
  • War Colleges

Readers

  • Groundwater Contamination Remediation.
  • Mechanical Engineering/Mechanics of Materials.
  • Military Engineering.